From NKAA, Notable Kentucky African Americans Database (main entry)
Williams, Mary Sneed Robinson
(born: April 6, 1906 - died: June 28, 1970)Mary S. Williams was the first African American employed by the Department of Public Welfare in Tulsa, OK, in 1938. She was supervisor over the social workers who managed the aid to families with dependent children. Williams had come to Tulsa in 1928, ten years before she was employed by the Department of Public Welfare. She was a member of the Tulsa Council of Colored Social Agencies in 1945. Fifteen years later, she was president of the Tulsa County Health and Welfare Association. Mary S. Williams was born in Frankfort, KY, the daughter of Maria W. and Dr. D. Owen Robinson. She was a graduate of Hampton University and was a member of Kappa Alpha. She was the wife of Willam D. Williams.
For more see "Rites set here for welfare aide," Tulsa Daily World, 06/30/1970, section B, p.6; "Special guests at the ...," Tulsa Daily World, 11/07/1945, p.20; "Health, welfare staff meet set," Tulsa Daily World, 09/14/1960, p.2.