José Ádem Chaín (born in Tuxpan, Veracruz, October 27, 1921; died February 14, 1991) was a Mexican mathematician who worked in algebraic topology, and proved the Ádem relations between Steenrod squares. He did postgraduate work at Princeton University where his advisor was Norman Steenrod. He was elected to El Colegio Nacional on 4 April 1960.

When Ruth Gonzalez received her Ph.D. in applied mathematics in 1986 from Rice University, she became the first U.S.-born Hispanic woman to earn a doctorate in mathematics. Her thesis in computational mathematics, written under the supervision of Mary Wheeler, was entitled “Domain Decomposition for Two-Dimensional Elliptic Operators on Vector and Parallel Machines” [Abstract, Full Version]. https://www.agnesscott.edu/lriddle/women/gonzalez.htm

Source: Agness Scott College Euphemia Lofton Haynes became the first African-American woman, and the ninth African-American, to earn a PhD in mathematics. She received hers from The Catholic University of America in Washington, D.C., in 1943. Dr. Haynes then taught in the D.C. school system, and was the first woman to chair the D.C. School Board!