The Virginia magazine of history and biography
(Virginia Historical Society, 1894), p. 423 (Original from the University of California, digitized Jun 4, 2007)
James Simpson, Richard Saul Ferguson, William Gershom Collingwood, Transactions of the Cumberland & Westmoreland Antiquarian & Archeological Society (1888), pages 114–120 (Item notes: v.9 Original from the University of California Digitized Jul 24, 2007)
