George, III, King of Great Britain, George, IV, King of Great Britain, and Edward Braddock. "[A map of Lake Erie with the route southward from Fort Presqu'Isle to Fort Cumberland, with inset plans of Fort Pitt, Fort Venango, Fort Le Boeuf and Fort Presque Isle]." Map. 1760–1763. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:6108vw177 (accessed August 10, 2022).