(Martha) Euphemia Lofton Haynes (September 11, 1890, Washington D.C. – 25 May, 1980, Washington, D.C.) was an American mathematician and educator. She was the first African-American woman to gain a PhD in mathematics, from the Catholic University of America in 1943.[1]
Euphemia Lofton was the daughter of William S. Lofton, a dentist and financier, and Lavinia Day Lofton. She was educated at Washington D.C. Miner Normal School and Smith College, where she majored in mathematics. In 1917 she married Harold Appo Haynes. She gained a masters degree in education from the University of Chicago in 1930, and in 1943 gained her PhD from the Catholic University of America. Her dissertation, supervised by Aubrey Landrey, was entitled The Determination of Sets of Independent Conditions Characterizing Certain Special Cases of Symmetric Correspondences.[1]