↑Church marriage record St. Columbkille's Church, Uptergrove, Mara Twp., Simcoe Co., Ontario; LDS film 1305889; item 2b, p. 24.
QUAY 3 "On June 27, 1887 were married, Peter James McDermott, age 28; son of Thomas McDermott and Catherine Duffy, and Mary Ann Cahill, age 24; dau.of Timothy Cahill and Mary Corcoran; witnesses: John McDerm ott and Emelia Cahill; by father W. J. McGinley at St. Columbkill's church."