Elson I. Rexford was born in South Bolton, Québec. After studies at the McGill Normal School, he taught in public schools from 1868 to 1871. He received his B.A. from McGill in 1876, and in the same year was ordained; he then joined the High School of Montreal staff, where he rose to the rank of assistant headmaster. From 1882 to 1891, he served as English Secretary of the Provincial Department of Public Instruction and later as Director of Protestant Education. Rexford returned to the High School of Montreal as Rector in 1891, in 1903, he left to take up the principalship of the Montreal Diocesan Theological College. In 1928, he retired as Principal Emeritus.

Outram Bangs was born on January 12, 1863, in Watertown, Massachusetts.

He was an American naturalist and ornithologist. In 1884, he graduated from the Lawrence Scientific School of Harvard University. Harvard awarded him the honorary degree of Master of Arts in 1918. In 1900, Bangs became curator of mammals at the Museum of Comparative Zoology at Harvard University and, in 1924, curator of birds. He visited Jamaica in 1906 and collected over 100 birds there, but his trip was cut short by dengue fever. His collection of over 10,000 mammalian skins and skulls, including over 100 type specimens, was presented to Harvard College in 1899. In 1908, he presented his collection of over 24,000 bird skins to the Museum of Comparative Zoology. In 1925, he travelled to Europe, visiting museums and ornithologists and arranging scientific exchanges. He wrote over 70 books and articles. He was a Fellow of the American Ornithologist Union, a foreign member of the British Ornithologist Union, and a member of the American Association for the Advancement of Science and the Washington Academy of Sciences.

In 1892, he married Elizabeth A. Bangs (1868–1907) and, in 1909, he remarried Annie Freeby. He died on September 22, 1932, in Cambridge, Massachusetts.

Rev. Charles Bancroft, M.A., was born on September 13, 1845, in Montreal, Quebec, the son of Rev. Canon Charles Bancroft (1819-1877).

He was an Anglican clergyman who received his education at Montreal High School, McGill University, and Gonville and Caius College, Cambridge (B.D.). In 1865, he started his service as a deacon and curate at the Holy Trinity Church in Montreal, where his father was the rector. He was ordained a priest in 1869 and served as the rector of Knowlton, Quebec, from 1876 to 1888. Following this, he served as the rector at the Anglican Grace Church in Sutton, Québec, from 1888 to 1893, and at the Church of the Good Shepherd in Nashua, New Hampshire, from 1893 to 1905. In 1906, he retired to Knowlton, Quebec.

In 1869, he married Eunice Foster (1845-1912). He died on December 1, 1906, in Knowlton, Brome, Quebec.

William Malcolm Drummond was born in Bristol, Québec, in 1897.

He was a distinguished and internationally respected Canadian economist. He was educated at Queen's University (B.A., 1923), the University of Toronto (M.A., 1924), the Ecole Libre des Sciences Politiques in Paris, and Harvard University (M.A., Ph.D.). As an economist, he lectured at the University of Alberta from 1924 to 1926 and at the University of Toronto from 1929 to 1937. He then became Professor and head of the department of agricultural economics at the Ontario Agricultural College at Guelph where he stayed for fifteen years. During World War II he served on various federal committees and boards before returning to O.A.C. In 1952, he resigned from this position to serve with the United Nations' economic mission in Korea. He served as a member of the Royal Commission on Agriculture in Newfoundland (1953), the Royal Commission on Canada's Economic Prospects (1955), and the Royal Commission on Price Spreads (1957). He was a Fellow of the Agricultural Institute of Canada and co-authored two books.

He died at home in 1965.

Thomas Arthur Ban was born on November 16, 1929, in Budapest, Hungary.

He was a Hungarian-born Canadian psychiatrist, psychopharmacologist, academic, researcher, and theorist. In 1954, he graduated from the Medical School of the Semmelweis University in Budapest and became a Resident Psychiatrist at the National Institute of Psychiatry and Neurology from 1954 to 1956. After the Hungarian Uprising in 1957/58, he emigrated to Canada and served as a rotating intern at the Victoria General Hospital in Halifax from 1957 to 1958, and as a resident psychiatrist in Montreal at the Verdun Protestant Hospital (VPH) from 1958 to 1959, and at the Allan Memorial Institute from 1959 to 1960. In 1960, Ban joined the staff at VPH as Senior Psychiatrist and Chief of the Clinical Research Service. He received his Diploma in Psychiatry from McGill University in 1960, with a thesis on “Conditioning and Psychiatry,” published in 1964. In 1969, he published the first textbook in the emerging field, "Psychopharmacology." In 1970, Ban was awarded the Clarke Institute of Psychiatry Annual Research Fund Award. In 1971, he became the founding director of the first Division of Psychopharmacology in the world at the Department of Psychiatry at McGill University. He was a critic of psychiatric practice, accusing the discipline of lacking a coordinated body of knowledge. Beginning in the 1960s, he was at the vanguard for a biologically based psychiatry at odds with the then-dominant Freudian psychoanalytic approach to treatment. He received the first annual Canadian Psychiatric Association’s McNeil Award in 1969. He won the award again in 1970 and 1973. Additionally, he was on the boards of two Hungarian neuropsychiatric journals, in addition to journals in Argentina, Brazil, Italy, and the United States. In 1976, he became a full professor of psychiatry at Vanderbilt University in Nashville, Tennessee and the director of the clinical research division of the Tennessee Neuropsychiatric Institute. In 1995, Vanderbilt University appointed him professor of psychiatry, emeritus. In his remaining years, he passionately devoted himself to the history of neuropsychopharmacology, including co-editing with Edward Shorter and David Healy a four-volume autobiographical account series for the Collegium Internationale Neuro-Psychopharmacologicum (CINP), and as editor-in-chief of a ten-volume oral history psychopharmacology series for the American College of Neuropsychopharmacology. He was a founder and the first executive editor of The International Network for the History of Neuropsychopharmacology (INHN) website from its inception in 2013 until his death. In 2003, he was bestowed with the Paul Hoch Distinguished Service Award of the American College of Neuropsychopharmacology.

He died on February 4, 2022.

Arthur Augustus Allen was born on December 28, 1885, in Buffalo, New York.

He was an American professor of ornithology at Cornell University. He earned his B.A. in 1907, his M.A. in 1908, and his Ph.D. in zoology in 1911, all from Cornell University. From 1911 to 1912, he participated in an expedition to Colombia. Following this, he served as an instructor in zoology at Cornell University from 1912 to 1916. In 1916, he was promoted to assistant professor and later became a full professor in 1926, a position he held until his retirement in 1953. He gained extensive knowledge of arctic birds through three separate trips to Hudson Bay in 1934, 1944, and 1954, and renewed his acquaintance with tropical birds in Panama while working with the Office of Scientific Research and Development in 1944-1945. After retiring, he lectured for the National Audubon Society from 1953 to 1959. He was known for his unique style of writing and speaking, which allowed him to effectively share his knowledge and discoveries. Additionally, he served as the President of the Eastern Bird Banding Association from 1923 to 1925 and received the Outdoor Life Medal in 1924 for his research on diseases of the Ruffed Grouse. He authored “The Book of Bird Life” (1930, rev. ed. 1961) and "Stalking Birds with Color Camera" (1951), a remarkable collection of 331 bird photographs in color and stories detailing the making of the photographs, published by the National Geographic Society. Allen was honored as a Fellow of the American Ornithologists’ Union and was a member of several ornithological and naturalist organizations, including the International Ornithological Congress, the Wilson Ornithological Club, the Cooper Ornithological Club, the American Society of Naturalists, American Wildlife Society (president, 1939), the Society of Mammalogists, Sigma Xi, Gamma Alpha, the Explorers’ Club, and the Savage Club, among others.

In 1913, he married Elsa Guerdrum (1888-1969). He died on January 17, 1964, in Ithaca, New York.