Jefferys, Thomas, d. 1771,  Cook, James,  and Robert Sayer and John Bennett (Firm).  "A general chart of the island of Newfoundland with the rocks & soundings."  Map.  1775.  Norman B. Leventhal Map & Education Center,  https://collections.leventhalmap.org/search/commonwealth:kk91fr16h (accessed April 02, 2020).