Des Barres, Joseph F. W. (Joseph Frederick Wallet). "Appearance of the land from the White Islands to St. Marys River taken two leagues off shore." Map. London: Published according to Act of Parliament J.F.W. Des Barres, 1781. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:ws859g968 (accessed August 08, 2022).