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Libbie Henrietta Hyman (1888-1969) graduated from the University of Chicago in 1910 and earned a Ph.D. degree from Chicago in 1915. She stayed at the university with an appointment as a research assistant until 1931 because, despite her pioneering work on classification of invertebrates and her publication volume (six major books and over 100 articles), other universities would not hire her because she was Jewish. In 1937 she was appointed as a research associate at the American Museum of Nat...
In 1919, Mary Van Rensselaer Buell (1893-1969) became the first woman to earn Ph.D. in biochemistry at the University of Wisconsin. She carried on her extensive research on nutrition and physiological chemistry at University of Iowa, Johns Hopkins University, Washington University, and the University of Chicago.
This photo is from that successful campaign, where in addition to picketing the League asked black Chicagoans to boycott white drivers and stores selling products from "Jim Crow dairies." Bowman's Dairy was one of the city's largest suppliers of dairy products and a major employer. Such pickets and "don't buy where you can't work" consumer boycotts took place in black neighborhoods in many U.S. cities during from the 1920s through the 1940s.