Brasier, William,  Pittman, Philip, active 1760-1770,  Amherst, Jeffery Amherst, Baron,  and Royal United Services Institute for Defence and Security Studies.  "A SKETCH of the RIVER MISSISIPPI from New Orleans to the Rock of Davion."  Map.  1770.  Norman B. Leventhal Map & Education Center,  https://collections.leventhalmap.org/search/commonwealth:hx11z229t (accessed September 25, 2021).