Elbert Frank Cox

Elbert Frank Cox was an American mathematician who was born December 5, 1895 in Evansville, Indiana. Cox became first african-american person in the world to receive a Ph.D. in mathematics.

Career and Life

Cox graduated from the University of Indiana in 1917. Following his graduation Cox entered the U. S. Army as a private during World War I and was promoted to staff sergeant in six months. Upon discharge, he became an instructor of mathematics at a high school in Henderson, Kentucky. In 1920 or 1921 (sources vary) Cox joined the faculty of Shaw University in Raleigh, North Carolina, and left there two years later to attend Cornell University with a full scholarship. In the summer of 1925, when Cox received his doctorate from Cornell, he became the first African-American to earn such a degree in pure mathematics, a field concerned with mathematical theory rather than with practice or application.

Cox became the head of the mathematics and physics department at West Virginia State College. He married Beulah P. Kaufman, an elementary school teacher, on September 14, 1927. They had three sons, James, Eugene, and Elbert. In 1929, he moved to Washington, D. C., to join the faculty of Howard University. In 1947, Cox became chair of Howard’s department of mathematics, a position he held until 1961 (a university rule mandated that all department heads resign at the age of 65). In addition to his contributions to abstract mathematics, he made his mark as an educator by helping craft Howard’s grading system the year he joined their staff and by advising numerous successful masters degree candidates in mathematics.

He remained a full professor in the department until his retirement in 1966.

During his career, Cox specialized in difference equations, interpolation theory, and differential equations. Among his professional honors were memberships in such educational societies as Beta Kappa Chi, Pi Mu Epsilon, and Sigma Pi Sigma. He was also active in the American Mathematical Society, the American Physical Society, and the American Physics Institute.

Death

Cox died on November 28, 1969, after a brief illness.

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