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Graham, Helen Tredway (21 July 1890–04 April 1971), pharmacologist, was born in Dubuque, Iowa, the daughter of Harry Ennis Tredway, a merchant, and Marian McConnell. Graham attended local public schools and then traveled east to matriculate at Bryn Mawr. First in her class at this college, Graham received a B.S. in 1911 and an M.A. in chemistry in 1912. She then won a fellowship to pursue postgraduate study abroad. Her year at Georg August University in Göttingen, Germany, cemented her interest in organic chemistry. When Tredway returned to the United States in 1913, she entered the University of Chicago’s graduate program in chemistry, from which she received a Ph.D. in 1915. While at Chicago, she met young physician Evarts Graham, and the two were married in 1916. Shortly thereafter they moved to Mason City, Iowa, where Evarts commenced practice; they had two children....