Jefferys, Thomas, and Jean Baptiste Bourguignon d' Anville. "North America from the French of Mr. D'Anville, improved with the back settlements of Virginia and course of Ohio, illustrated with geographical and historical remarks." Map. London: Thos. Jefferys, 1755. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:z603vs00v (accessed April 23, 2024).