(1727—1759) mathematician and military engineer
Thad Sitton, James H. Conrad. Freedom Colonies: Independent Black Texans in the Time of Jim Crow. (Jack and Doris Smothers Series in Texas History, Life, and Culture, number 15.) Assisted by Richard Orton. Austin: University of Texas Press. 2005. Pp. 248. Cloth $50.00, paper $19.95.