Sadie Tanner Mossell Alexander Biography

Sadie Tanner Mossell Alexander (January 2, 1898 – November 1, 1989), was the first African-American woman to receive a Ph.D. in economics in the United States (1921), and the first woman to receive a law degree from the University of Pennsylvania Law School. She was the first African-American woman to practice law in Pennsylvania. She was the first national president of Delta Sigma Theta Sorority, serving from 1919 to 1923.