I'm researching my Regan line and have a "Mary Byrne Regan" who was married to "John Regan". They lived in Ontario Canada and both died around 1944-1945. Does it sound like this could be the same Mary?
Mrs. Mary T. (Byrne) Regan in 1915, born 1855, Waterford, Ireland. Married to John F. Regan (dod: 12/6/1899).