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Biographical Memoirs: Volume 70 HENRY GILMAN May 19, 1893-November 7,1986 BY C. EABORN HENRY GILMAN, one of the outstanding organic chemists of the century, and one of its best known chemical personalities, died on 7 November 1986. He was born in Boston, Massachusetts, on 9 May 1893, the third member of a family of six sons and two daughters. His father was a tailor, active in trade union affairs. He attended a high school in Boston and from there went on to Harvard University where he received the B.S. degree (summa cum laude) in 1915. His first acquaintance with research came during his final year as an undergraduate, during which he worked with Roger Adams on the synthesis of substituted phenyl esters of oxalic acids, demonstrating the use of the new reagent oxalyl chloride; an account of the results appeared in the Journal of the American Chemical Society in 1915 (1). This experience was of major importance in arousing Gilman's interest in research and in 1976 he recalled it in the following terms [1]: 'A sheer delight. Here I was, just a senior. We'd work at night until 11 or 12 o'clock, without Reprinted with permission of the Royal Society, London, England. The original, in Biographical Memoirs of Fellows of the Royal Society, 1990, vol. 36, pp. 153-72, includes, on microfiche, the complete version of Gilmania, a full account of Gilman's research contributions, and a complete list of his publications

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Biographical Memoirs: Volume 70 any compulsion—just for the joy of it.' And in the following year he wrote of it a little more fully [2]: In my senior year at Harvard I was interested in doing some research with Adams. This was done as an aside, and either carried no credit or only a small token of credit. Not a little of the work was done at night, and I recall how when the research was completed for the day, often near midnight, we would cross the street to a drugstore on Massachusetts Avenue for a chocolate malted milk. The experiments were a great delight for me, and he would come in somewhat frequently for chats. He was, of course, most friendly, interested, and helpful. The study was not 'monumental', but it was exciting for each of us; his first direction of research, and my initiation into research. Gilman's performance was evidently good enough for him to be invited to stay on for postgraduate work with the renowned head of the department of chemistry at Harvard, E.P. Kohler, known widely as the King of Chemistry, or simply The King. Kohler is credited with having introduced the use of the Grignard reagent to the U.S.A., and there is no doubt that his interest in organometallic reagents had a formative influence on the young Gilman; the one paper they published together was concerned with the bromination of a-keto esters, and includes a description of the use of the Reformatsky reaction, which involves an intermediate organozinc compound closely related to a Grignard reagent (2). On the basis of this work he received an M.A. in 1917 (a year late, it is said, because his supervisor neglected to complete the relevant documentation on time) and the Ph.D. in 1918. During his graduate work he was awarded a Sheldon Fellowship to travel in Europe, and spent periods with H. Staudinger at the Polytechnicum in Zurich and with W.H. Perkin, Jr., at Oxford. He also visited the Sorbonne. His experiences in Europe made a lasting impact on him and

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Biographical Memoirs: Volume 70 he would frequently recall them in conversation even into his 90s. (He took special delight in having met at the Sorbonne Marie Curie, the first woman to win a Nobel Prize for Chemistry, and during a visit to the Royal Society in 1975 was able to realize an ambition to meet Dorothy Crowfoot Hodgkin, the most recent female recipient of that award, and the only other woman to win it outright.) His contact with Staudinger probably stimulated an interest, which persisted for many years, in the reactions of ketenes, isocyanates, and cyanates. More importantly, during his stay in Paris (where he met Victor Grignard) he became fully aware of the great advances in organic chemistry made in France by the use of Grignard reagents and this, following his introduction to them by Kohler, fixed in him a determination to explore their chemistry when he was in a position to undertake independent research. After completing his doctorate, Gilman accepted an invitation from Roger Adams to join him at the University of Illinois as an Associate Professor, but soon afterwards, in 1919, wishing to be his own master, he moved to Iowa State College of Agriculture and Mechanic Arts (ISC), as an Assistant Professor but in charge of organic chemistry there. His qualities were quickly recognized, and he was made a full professor in 1923, when only 30 years old. When he went to ISC it was a Land Grant college and by no means the major university it later became. Gilman has said [3] that when he arrived 'the chemistry program was very modest, fifteen or eighteen undergraduates and perhaps a dozen graduate students. But there was a nice esprit de corps. We were young and enthusiastic. We all worked quite hard. And we had a nice, easy relationship with the students.' Ames itself was then a small town in the middle of farmland, a rural community with an atmosphere very different from that of Boston, but this was of little consequence to

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Biographical Memoirs: Volume 70 Gilman, who gave almost all his time to chemistry (and most of the rest to keeping himself physically fit to do chemistry). Fortunately even then the college had an excellent chemistry library, so that there was no question of his being out of touch with advances in the subject. Moreover, Ames was on a main trans-continental railway line and only eight hours' journey from Chicago. This enabled him to attend meetings of the American Chemical Society and other such events without major inconvenience. His arrival in Ames caused some excitement among the young women of the college, faced with a cultured, tall, upright, distinguished-looking, and athletic young man, with a Boston accent, a Harvard background, and experience of some of the great universities of Europe. And interest was all the greater because he seemed to show no awareness of female charms. A woman who was a student there then (and later became a member of faculty) recalls that she and a friend resolved to try to make his acquaintance and telephoned him at his boarding house, only to find themselves speechless when he was brought to the telephone, and they were never again able to summon the courage to approach him. A few years later, the woman who was to become his wife made contact with him as a result of a bet that she could not induce him to take her out and in winning her bet found that he was much less frightening than they had all imagined. This young woman was Ruth V. Shaw, a native Iowan, born in 1901, who had attended Henry Gilman's first-year class in organic chemistry on her way to an AB in history, which she received in 1924. She subsequently took an AM in English and speech at Cornell University, and for three years taught speech at ISC before they were married in 1929. They were a devoted couple and Henry was most

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Biographical Memoirs: Volume 70 fortunate to have such a splendid partner when he became virtually blind, as will be described later. Gilman began research at Ames without delay, in the early years mainly with Master's degree students, and as soon as 1920 published his first paper based on work there (3). Significantly, it was concerned with the reactions of Grignard reagents, in particular the course of their reactions with ketenes, and was his first independent step in his lifelong devotion to organometallic chemistry. His first student to receive a Ph.D. is said to have been R.M. Pickens, who was awarded the degree in 1925; his work was concerned with the chemistry of derivatives of furan, thiophene and pyrrole (in particular with their effectiveness as local anaesthetics), a field in which Gilman was to work extensively in the following years. Pickens later became director of research at Rayonnier Co., and was probably the first of the many of Gilman's students who went on to reach the highest ranks in industry. Among Gilman's first doctoral students was W.B. King, who later himself achieved distinction as a Professor at ISC and Iowa State University (ISU), as it became in 1959. He worked with Gilman from 1923 to 1927, and has written of the great admiration he developed for him as a scientist and as a man. Gilman was then, and remained for many years until failing eyesight put an end to it, a highly enthusiastic tennis player, who played a hard competitive game, and took special pleasure in playing regularly against King, who was the state tennis champion. Gilman was interested in all aspects of the game (and for some years acted as an assistant coach in the sport at ISC), and in 1926 he and King went together to watch the Davis Cup matches in Pennsylvania. It is likely that none of his other students was ever as close to Gilman, but their relationship, although friendly, nevertheless had the degree of formality that Gilman thought

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Biographical Memoirs: Volume 70 appropriate between supervisor and student. Professor King relates that, although he knew Gilman well throughout his life from 1923, and regularly played golf, tennis, and card games with him, he could never, even as a senior professor at Ames himself, address Gilman as Henry, so great was his admiration for him. It is clear from accounts by Professor King and others that even by the mid-1920s Gilman was regarded in the college as a great man, and certainly the outstanding scientist on the campus. It is remarkable that in the period 19201929, starting from nothing and with only the very limited resources of ISC available to him, he published 98 papers, mainly in the Journal of the American Chemical Society. The demands that Gilman made on research workers under his supervision in the 1920s set the pattern that persisted for the next 50 years or so. He expected total dedication: students were required to be in the laboratory working every day, including Sundays, late into the night, but there is no indication that at that time they resented this. In the 1930s, however, his demands gave rise to much discontent among the 30-40 members of his research group (an abnormally large number for those days), as several correspondents have made clear. To some extent this was probably a reflection of the general unhappiness during the Depression, when there was much unemployment, poverty and uncertainty, but the complaints of Gilman's students of those days centre on three specific aspects of his behaviour. First the unremitting pressure on them to work all and every day, and to produce results each day; second the low stipends he paid them; and third, and the most important, the length of time, and the uncertainty of its duration, that they were normally required to stay before receiving their Ph.D. degrees. The students certainly had no opportunity to slack. Gilman

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Biographical Memoirs: Volume 70 went around his laboratories three times each day, in the morning, afternoon and evening, questioning each student in turn about what he had done since his last visit, what he was now doing, and what he intended to do next. When a project was at an especially interesting stage the student concerned would be questioned on all three visits. Gilman remembered exactly what he had been told on the previous visit and so the hours in between had to be accounted for. The initial questioning usually took the form 'What's new?' and the answer was followed by the question 'What else is new?' and the answer to that by the further question 'And what else?'. One of his students from those days has written: 'Always we would begin to think that we had done very little. The cunning ones soon realized that you should keep some results up your sleeve to report next week in order to make your achievements seem more impressive.' He did not visit the laboratory every Sunday, but did so sufficiently often that the students could not risk being absent that day. At all times students in the laboratory were expected to be giving their full attention to experiments in progress, and those caught seizing an opportunity to study for graduate course or preliminary examinations were sharply reprimanded. They had some chance to get away with such study, however, because throughout his research career he tried to avoid coming upon embarrassing situations by shuffling his feet loudly outside the laboratory to give warning of his arrival. Gilman himself frequently stayed in the building until after 10 p.m. and then went home to work until after midnight reading or writing. During the whole of his career, except at the time of his eye operation, he was rarely, if ever, away from Ames for more than a week or so at a time, and when he did go away he told no one, not even his secretary, when he would be back, so that his students could not risk taking a day off.

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Biographical Memoirs: Volume 70 As for the stipends he paid, he fixed the amounts by working out carefully exactly the minimum sum on which each student could manage. This had the secondary advantage of leaving them little to spend on leisure activities which might have kept them away from the laboratory. Someone who worked for him as postdoctoral fellow in the 1940s has told of how, in fixing his salary, Gilman asked him whether soap was provided free in his lodgings, and made an appropriate allowance when told that it was not. The majority of the graduate students took 5-7 years to get their degrees, at a time when in other universities three years was still usual. Some were required to stay even longer; at least one is known to have taken ten years (and he, tragically, was killed in a fall from a ladder before leaving Ames) and some abandoned the attempt after a lengthy stay. One factor was that Gilman did not in most cases assign a graduate research project but instead directed the student to carry out a series of preparations, often unrelated, which could be expected to give rise to a number of short publications, and it required considerable initiative and ingenuity on the part of the student to devise and carry out additional experiments that would enable him or her to draw the material together into a coherent whole for a thesis. The preliminary examinations that had to be passed before the Ph.D. thesis could be submitted also presented a major hurdle, because they could be taken only with the supervisor's permission. This was normally not readily forthcoming from Gilman, and many students were too afraid of him even to seek it until he offered it. There is a story from those times, which, while undoubtedly apocryphal, and seemingly current outside rather than within Ames, reflects, with exaggeration, not only the distress caused by the length of time Gilman required students to stay with him but also his imperturbable and formal manner. In this story, it is said that

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Biographical Memoirs: Volume 70 a student who had been working for Gilman for 12 years, producing results for 15 publications, without having been allowed to submit for his Ph.D., burst into Gilman's office, placed a shotgun at his head and asked 'When am I going to graduate, Dr. Gilman?' To which Gilman is alleged to have replied 'Why Mr.—, I have been thinking that it is about time for you to get your Ph.D., and I appreciate your bringing the matter to my attention'. It must be emphasized that not all of Gilman's students felt ill-treated, and it seems that towards a few, probably the hardest and most effective workers, he behaved rather differently, and they were able to regard him with awe rather than fear, and could question him and debate with him. A very select few, usually working in small laboratories, were rarely visited, and having been given on arrival a general indication of the problem they were to tackle were allowed to exercise their own initiative freely, and to work without interruption, subject only to the regular submission of satisfactory written reports. Dr. J.M. Straley, who took only the three years of 1933-1936 over his Ph.D., is one of those who had no complaints about the way he was treated by Gilman, partly because, he says, he had studied for a time under one of Gilman's former research students and so knew what to expect, and furthermore he had established a special relationship with Gilman shortly after arriving. He writes: 'I had been at Ames only for a week, working on a list of ten compounds HG had given me to prepare. I had four of them prepared when he demanded 10 g of one on which I had not even begun. I calmly told him that if he would inform me of his priorities I would arrange my activities accordingly. We understood each other completely thereafter.' Dr. Straley writes of his three years with Gilman as the most fruitful of his life; he developed a lifelong admiration for Gilman and remembers, as do many others, Gilman's

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Biographical Memoirs: Volume 70 kindness towards any of his students with personal, including financial, problems. (He recalls that one student, who had been badly injured, physically and psychologically, in World War I, and was unemployable and virtually incapable of research, continued to receive a stipend from Gilman until his death in the 1940s.) But even those who regarded themselves as relatively well treated were aware of the unhappiness among other members of the group, and all of the following comments (some referring to the early 1940s rather than the 1930s) came from five such people: With most of his graduate students there was a strong undercurrent of fear: Gilman was capable of overwhelming criticism with which the students could not cope . . . A few of us who were treated differently were fully aware of the problems of the other students, but there was nothing we could do, since Gilman represented absolute authority in the Organic Chemistry Department. The attitudes of the graduate students under Gilman were based largely on overwork, underpay, uncertainty as to the future, and a constant prevailing fear of HG. Sad to say, we all claimed we hated him, but all of us mellowed in later years as realization grew of what a tremendous man and teacher he was. Most of us were united in our detestation of Gilman. Most of us later decided that he was not so bad after all. Everyone regarded his period at Iowa State College as a painful period necessary if one wanted a good job afterwards. Most of us, drinking laboratory alcohol and eating popcorn or potato chips, were united in our detestation of Henry, and wondered how people a few years after getting away could revise their memories and say: 'Well, he wasn't such a bad guy after all.' But most of us became revisionists in turn some years after leaving. Certainly Henry became very charming once we had left. Some of the quotations above introduce an important aspect of Gilman's treatment of his students. However se-

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Biographical Memoirs: Volume 70 be so, and his attitude was especially unusual in the Midwest. Even in the early 1930s he usually had at least one black graduate student in his group and one of them, N. Calloway, was the first black person to receive a Ph.D. in chemistry from a university west of the Mississippi: he went on to a distinguished career in medicine and became president of a company. A black student with him some years later, Dr. S.P. Massie, went on to become a professor, and Chairman of the Department of Chemistry, at the U.S. Naval Academy. Another black student, F.D. Patterson, became President of the Tuskegee Institute, for which Gilman served as an adviser for some years. Gilman also served on the Board of Trustees of the Carver Research Foundation. Mr. H. Oatfield, who joined Gilman's group as a Master's degree student in 1931 from the William Marsh Rice University in Houston, Texas, and went on to a distinguished career in industry, relates that on his arrival Gilman sent him to Calloway for instruction on how to go about tackling his first research assignment, and believes that this was done to test the attitude of someone who had just come from Houston, where colour prejudice was extreme. (As it happens Oatfield had himself been appalled by the treatment of black people in Texas.) There is much evidence that Gilman, whom some believe to have been the subject of prejudice himself, never allowed race, nationality, creed or political beliefs to influence his treatment of individuals. He certainly did distinguish between people, especially students, in terms of their personal qualities, and in particular their integrity and dedication to hard work. Gilman's good manners included genuine consideration for others, not just formal courtesies, though the latter were also much appreciated by recipients of them. He always spoke firmly and softly, and was never known to show anger. Although he could on occasions, when especially dis-

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Biographical Memoirs: Volume 70 satisfied with a student's attention to chemistry, deliver a cutting rebuke, his displeasure was normally indicated by no more than a long drawn out 'Oh', which left no one in any doubt about his feelings, or by striking his forehead with his fist and exclaiming 'What a blow!' In one of his more severe admonishments, to a student who had allowed lunch to interrupt his recrystallization of a product, he said 'What man, have you ice-water in your veins?' On more than one occasion, it seems, a student who (in common American style) reported that a reaction 'was allowed to sit overnight' was rebuked with the response 'No, it was allowed to stand overnight; nothing sits in this laboratory'. An aspect of the good manners he acquired in Boston and which stayed with him all his life was that he was always neatly and appropriately dressed. Students with him in the 1920s and 1930s recall that they almost invariably saw him in a tweed suit, tailored for him in Boston, with three buttons (all fastened, as noted in Gilmania!), and with lapels, pockets, and cuffs sewn within about a quarter to half an inch from the edge; for a long time they thought he had only the one such suit, which he wore every day to the laboratory, but later realized that he had at least two identical ones that he wore in turn. That he was not prone to react rapidly to changes in fashion is revealed by the fact that a photograph taken in about 1968 shows him wearing just such a suit, similarly buttoned [5]. He greatly enjoyed conversation with friends and was always prepared to listen and learn; he gave his complete attention to anyone, of whatever status, speaking to him, often with his prominent chin cupped in his hand. He had a large fund of recollections and anecdotes, and a phenomenal memory for events in the lives of former students and colleagues whom he had not seen for many years. He had a warm, gentle sense of humour. An example is the following passage from a letter

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Biographical Memoirs: Volume 70 he wrote in 1962 [6] concerning one of the most hardworking students he ever had, a George F Wright, who was with him in the 1930s and later achieved considerable distinction as a professor at the University of Toronto: 'It was prohibition time. One weekend he needed some very good alcohol to purify a sensitive furan compound; the storeroom was closed, so he drove in his old car to one of Al Capone's caves in Boone and bought the alcohol. This is the only time I ever heard of a student bringing alcohol into the chemistry building.' Throughout his life, up to the time of his final illness, Gilman maintained an extensive correspondence with surviving old classmates at Harvard (including J.B. Conant, who became a famous president of that University), former students and postdoctoral fellows, former colleagues, and numerous friends around the world. From time to time, when a certain issue, chemical or general, was on his mind, he would seek the view of a wide range of his correspondents; in his eighties, for instance, he became interested in cases in which the advance of chemistry had been delayed by the failure of a research supervisor to entertain good ideas for future work suggested by a student and sent letters to correspondents in several countries seeking accounts of examples of this. (His interest in the matter had been originally aroused during his visit to Europe as a postgraduate, where Grignard told him how Barbier had for some years prevented him from trying out the method which later became standard for the preparation of Grignard reagents.) An outstanding feature of his correspondence was his generosity towards other chemists whose work he admired. Young people, inside and outside the U.S.A., who had never met him were greatly encouraged by his letters expressing regard for their recent papers, and many an established chemist derived much pleasure from a short

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Biographical Memoirs: Volume 70 note from him saying how much he admired their overall contributions to chemistry. A notable aspect of Gilman's character was that, even though he had for many years heard himself referred to as, for example, 'The American Liebig,' 'The Master Chemist', and 'The Father of Organometallic Chemistry', and in 1968 'one of the most inspirational and legendary figures to grace the chemical scene this century' [5], he never developed any trace of the pomposity and arrogance that is sometimes evident in those who have achieved such worldwide eminence. Although he was, for a professor, highly-paid, and received substantial additional sums for consulting, he and his family maintained an unostentatious, though comfortable, lifestyle. One indulgence he and his wife permitted themselves was a new home, outstandingly luxurious at the time for Ames, which they had built in 1936. One who was a student with him then, and was invited with his colleagues to a party to view the house, has told of the awe in which they looked around it, admiring especially the fully-fitted basement and attic, a feature he had never before encountered, and finding that the whole house had air-conditioning, something virtually unknown in Ames in those days. Several generations of students enjoyed parties there in later years, often given so that they could meet eminent visitors. Gilman was rightly the recipient of much admiration for the way in which he responded to severe loss of sight which developed into almost total blindness. He allowed the handicap, which would have caused most people to give up, to make the minimum possible change in his behaviour, and this was all the more remarkable because if he had abandoned research in 1947 he would still have been one of the outstanding organic and organometallic chemists of the century. In the event, of his 1020 research publications, 584 appeared after 1947 compared with 436 up to then, and

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Biographical Memoirs: Volume 70 moreover these later papers were generally more substantial than those in the earlier years. That chemistry still held the same excitement for him in the years following the loss of most of his sight is illustrated by a story told by Professor R.A. Benkeser, who after taking his Ph.D. with Gilman joined the chemistry faculty at Purdue University. Gilman went there by train in the late 1940s or early 1950s to give a lecture and on arrival was taken by Benkeser to the Union Building where he was to stay overnight. At the reception desk the clerk handed him a telegram that had just arrived and this read simply 'The mixed melting point was undepressed'. It turned out that, although it was irrelevant to his lecture, Gilman had arranged for the student to wire him because he could not wait until the next day, when he would be back at Ames, to find out whether a synthesis had been successful. One aspect of his life that was necessarily changed by the deterioration of his sight involved his previous commitment to keeping fit through regular exercise. He had always played vigorous tennis in the summer and four-wall handball in the winter, usually with graduate students; because of the time of day they took place the games were referred to for many years as 'five o'clocks'. He lived about a mile away from the campus and usually walked the distance briskly six times a day, often inviting a student to walk with him on the way home, and discuss the student's progress on the way so that, it is said, the walk commonly resembled an oral examination.* His son relates that each evening Henry and *   Most unusually for someone in his position in the U.S.A., he never learnt to drive a car, possibly because he did not trust his eyesight even before the major deterioration, and students with him in the 1930s relate that when driven by others he would keep the door slightly open with his foot, so that he could escape rapidly in an emergency!]

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Biographical Memoirs: Volume 70 his wife would go for a final brisk walk before he continued working in his study well past midnight. It was one of the hardships he had to accept that, after first giving up his tennis and handball, as his sight became even worse he had finally to abandon even his vigorous walks. He seemed hardly to change in appearance or attitude in the last 30 years or so of his life, and at a gathering in Midland, Michigan, in 1982 to mark the 21st anniversary of the creation of the Frederic Stanly Kipping Award of the American Chemical Society, of which he had been the first recipient in 1962, he was upright, gracious, alert and interested in the reports of others, still showing the same happy sense of curiosity and wonderment at an interesting new observation which had been a life-long characteristic. This was in spite of the fact that in the previous year, after some years of serious heart trouble, he had, at the age of about 88, been fitted with a pace-maker; of the event he recounted with delight that the surgeon had instructed him to return ten years later for a replacement battery. His composure in face of his loss of sight had been an example and inspiration to all who knew him. It was noted of him in 1977 that 'he speaks easily, casually of his ''impaired vision", but he is wrong. His eyesight may have been dimmed, but his vision has not' [1]. Gilman was a well-informed, highly literate, and articulate person. In his later years became concerned about the lack of culture among science students (a matter he referred to in his interesting Priestley Award Address in 1977) and began to explore the possibility of making formal instruction in the humanities a required element of a postgraduate degree course in chemistry. He had a strong sense of history and it gave him very special pleasure that he was made an Honorary Fellow of the (British) Chemical Society, the oldest chemical society in the world, and took great

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Biographical Memoirs: Volume 70 delight in joining the Royal Society, the oldest scientific society, and in signing the Charter Book containing the signatures of those such as King Charles II, Newton, Priestley, Dalton, Faraday, Darwin and Ramsay. During his visit to Britain to be formally admitted to the Society he revealed a strong wish to visit Nelson's flagship H.M.S. Victory, and was taken there by Dr. D.R.M. Walton. Although he could see little of it, he derived great pleasure just from standing on its deck. Gilman enjoyed a very happy family life. He had been brought up in the Jewish faith but upon marriage he joined the Episcopal Church, to which his wife belonged, and they remained active members of it throughout their married life. As has been seen, for the last 40 years of his life he was able to sustain his remarkable level of activity only with the help of his devoted and able wife. Sadly she died a little over two months after Henry, and she was followed almost six months later by their daughter Jane, who had returned to Ames in the latter part of their life and given them increasing support. A son survives them, as do four grandchildren, who brought them great pleasure. The final word in this section can appropriately come from Professor W.B. King who, as mentioned earlier, was a research student with Gilman in 1923-27 and subsequently his colleague at ISC and ISU throughout their working lives. He writes: 'When he arrived at Heaven's gate, I can imagine St. Peter saying "Let this gentleman in; few appear with such an enviable record of dedication and discovery, honesty and courage!"' HONOURS, DISTINCTIONS AND TRIBUTES The main formal honours and distinctions bestowed on Gilman are listed below.

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Biographical Memoirs: Volume 70 1945 Elected to National Academy of Sciences 1951 Iowa Award and Midwest Award of American Chemical Society 1961 Honorary Fellow of the (British) Chemical Society 1962 First American Chemical Society Frederic Stanley Kipping Award in Organosilicon Chemistry Distinguished Professor, Iowa State University 1974 Chemistry building, Iowa State University named 'Gilman Hall' Annual series of Gilman Lectures established at Iowa State University, endowed by gifts from friends and former students 1975 Elected Foreign Member of the Royal Society Distinguished Fellowship Awards, Iowa Academy of Sciences. 1977 Priestley Medal of the American Chemical Society 1982 Iowa Governor's Science Medals 1987 Gilman Graduate Fellowship Fund established in his memory at Iowa State University Among published tributes are the following: article (with photographs) by R.A. Benkeser in the Journal of Organic Chemistry in 1968 on the occasion of Gilman's 75th birthday [5]; tribute in Chemical and Engineering News in 1977 marking the award of the Priestley Medal [1]; article by R.K. Ingham as the introduction to a special issue of the Journal of Organometallic Chemistry on the occasion of Gilman's 90th birthday [8]; appreciation (with photograph) by J.D. Roberts in Organic Syntheses in 1987 [9]; Appreciation (with photograph) by J.J. Eisch in the Journal of Organometallic Chemistry in 1988 [10]. On the occasion of Gilman's 90th birthday a celebratory dinner was held in his honour on the ISU campus and was

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Biographical Memoirs: Volume 70 attended by 278 members of his family, friends, and former students, a good number from abroad. He was presented with several volumes of congratulatory letters sent by 500 of his friends and colleagues. An account of the event mentions that he had supervised 242 graduate students [7]. Although Gilman was a dominant figure in chemistry in America in the 1930s, and was made a member of the National Academy of Sciences in 1945 (he was the first chemist at a Land Grant Institution to achieve this distinction), it can be argued that the importance of his overall contribution to chemistry was formally recognized sooner in Britain than in the U.S.A., in that in 1961 he was made an Honorary Fellow of the Chemical Society, the highest distinction the British chemical community can bestow, and in 1975 was elected to Foreign Membership of the Royal Society, the highest distinction the British scientific community can confer on someone from outside the British Commonwealth, and yet only in 1977 received the Priestley Medal of the American Chemical Society, its highest award. There are those who argue with some force that so influential was his work that he could appropriately have received the highest formal international recognition open to a chemist. ACKNOWLEDGMENTS This account has drawn freely on articles by Professors R.A. Benkeser, J.J. Eisch and R.K. Ingham, who all kindly provided additional material and advice. Valuable information came from the following correspondents, the great majority of whom responded to a request published in Chemical and Engineering News: F.R. Bacon, A. Bader, T.J. Barton, M.C. Brockmann, A.G. Brook, F.K. Cartledge, Mrs. L. Catlin, A.E. Comyns, T.H. Cook, A.H. Daane, J.W. Diehl, J.J. Dietrich, J.T. Edward, R.M. Guest, M.G. Gergel, H.S. Gilman, F.W. Hoyt, Mrs. A.S. Hull, W.B. King, Mrs. L.S. Kline, R.H. Luebbers,

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Biographical Memoirs: Volume 70 L.D. Metcalfe, J.W. Morton, Jr, H. Oatfield, D.E. Pearson, M.T. Rahman, S.H. Shapiro, (the late) D.A. Shirley, H.J. Shine, J.H. Stocker, R.W. Strassburg, J.M. Straley, W.S. Trahanovsky, B.W. Wakefield, and H.L. Yale. Very helpful comments on the draft manuscript were made by R.A. Benkeser, R.W. Bott, J.W. Cornforth, J.J. Eisch, W.B. King, P.D. Lickiss, J.W. Morton, Jr., H. Oatfield, J.M. Straley, W.S. Trahanovsky, and H.L. Yale. The portrait photograph reproduced was taken in 1969. PAPERS BY H. GILMAN REFERRED TO IN THE TEXT (With R. ADAMS) J. Am. chem. Soc. 1915 37, 2716. (With E.P. KOHLER) J. Am. chem. Soc. 1919 41, 683. (With L.C. HECKERT) J. Am. them. Soc. 1920 42, 1010. OTHER WORKS BY H. GILMAN REFERRED TO IN THE TEXT 1938 Organic chemistry. An advanced treatise (ed. H. Gilman), vols. 1 and 2. New York: Wiley. 1943 Ibid 2nd edition. 1953 Ibid vols 3 and 4. 1977 Some aspects of interdisciplinary research (Priestley Award address) Chem. engng News., March 28, 49-52. OTHER REFERENCES [1] W. Worthy 1976 Chem. engng. News July 12, 19-20. [2] H. Gilman in letter to D.E. Pearson 1977 9 May. [3] News of Iowa State 1966 18, no. 5, May-June. [4] Program for dedication of Henry Gilman Hall, Iowa State Univ. 1974 6 May. [5] R.A. Benkeser 1968 J. org. Chem. 33, 5. [6] H. Gilman in letter to W.E. Catlin 1962 29 May. [7] The Iowa Stater 1983 August, p. 6. [8] R.K. Ingham 1982 J. organometal. Chem. 225, ix. [9] J.D. Roberts 1987 Org. Synth. 66, xiii-xv. [10] JJ. Eisch 1988 J. organometal. Chem. 338, 281-287. [11] W. Schlenk & W. Schlenk, Jr 1929 Chem. Ber. 62, 920. [12] W.G. Bywater 1934 Doctoral Thesis, Iowa State Univ.

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Biographical Memoirs: Volume 70 D.M. Hayes 1934 Master's Thesis, Iowa State Univ. [13] Th. Kruck, E. Job, & U. Klose 1968 Angew. Chem. Int. edn. Engl. 7, 374. [14] J. Chatt, C. Eaborn & S.B. Ibekwe 1966 Chem. Commun. 700. [15] H. Shapiro & F.W. Frey 1968 The organic compounds of lead. New York: Wiley. [16] J.D. Roberts, H.E. Simmons, Jr., L.A. Carlsmith & C.W. Vaughan 1953J. Am. chem. Soc. 73, 3290. J.D. Roberts, D.A. Semenov, H.E. Simmons & J.A. Carlsmith 1956 ibid 78, 801. [17] D.D. Davies & C.E. Gray 1970 Organometal. Chem. Rev. A6, 283.