Was born in Maryland, March 1749. A brave officer in the revolutionary war; held a command in the Maryland line, and was deputy adjutant general of the American army. In the retreat of Green from South Carolina to Virginia in the beginning of 1781, Colonel Williams was entrusted with the command of the light corps in the place of the brave General Morgan, who was indisposed, and by his manoeuvres he greatly embarassed Cornwallis in pursuit. After the conclusion of the War he resided at Baltimore; he died July 15, 1794; aged 45 years. He was a firm and disinterested patriot, as well as a gallant soldier, and in the relations of private life secured esteem. [Pp. 21-22.]
Historical Catalogue of the Paintings in the Philadelphia Museum consisting chiefly of Portraits of Revolutionary Patriots and other distinguished characters. 1813.