Myra Hill Colson Callis (March 13, 1892 – 1979) was an American social worker, educator, researcher, and YWCA administrator, best known for her work on employment.
She was the first African-American woman to earn certification from the national training school for YWCA secretaries.
[6] She was a social worker and researcher in Washington, D.C. in the 1930s and 1940s, specializing in employment and placement services for Black women.
[12] After World War II, Callis was supervisor of household operations at the United States Employment Service (USES) in Washington.
[14][15] Colson married physician and medical school professor Henry Arthur Callis in 1927, as his third wife.