↑Church marriage record St. Peters Mission, Biddulph Twp, Canada West; LDS film # 1310851, marriages, p. 6.
QUAY 3 On Apr 8th, 1861 were married, Dennis Mahoney, son of John Mahoney and Margaret Fitzgerald, and Catherine O'Brien, dau. of Cornelius O'Brien and Ellen Rahally[sic]; witnesses: Jeremiah O'Brien, Mar y O'Brien; by T. Murphy"