- DICTIONARY OF CANADIAN BIOGRAPHY ARTICLE: R. Arthur Bowler and Bruce G. Wilson, “BUTLER, JOHN (d. 1796),” in Dictionary of Canadian Biography, vol. 4, University of Toronto/Université Laval, 2003–, accessed June 12, 2025, https://www.biographi.ca/en/bio/butler_john_1796_4E.html#citations
- DCB profile notes:
- Army officer, office-holder, and Indian agent; baptized 28 April 1728 at New London, Connecticut, son of Walter Butler and Deborah Ely, née Dennison; m. Catalyntje Bradt (Catharine Bratt) about 1752, and they had four sons and one daughter who survived infancy; d. 13 May 1796 at Newark (Niagara-on-the-Lake, Ont.).
- “At the outbreak of the Revolutionary War in 1775 Butler, together with other Mohawk Valley Loyalists including his sons Thomas and Walter, and Guy Johnson, left to join the British forces in Canada.”
- Proven United Empire Loyalist in Loyalist Directory: https://uelac.ca/loyalist-directory/detail/?wpda_search_column_id=1091
- Find a GRAVE: https://www.findagrave.com/memorial/42216505/john-butler
