Bastide, John Henry, approximately 1700-1770, Durell, Philip, -1766, Amherst, Jeffery Amherst, Baron, and Royal United Services Institute for Defence and Security Studies. "PLAN of the TOWN and FORTRESS of LOUISBOURG on the ISLAND CAPE BRETON." Map. Louisbourg?: Taken & Drawn after the Seige by John Henry Bastide Chief Engineer for Nova Scotia,, [ca. 1745]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:hx11z048m (accessed April 25, 2024).