In the 1901 census for Bangor/MClure/Wicklow, Hastings District, ON, There is an Isaac Franklin born June 10,1873, a farmer, with wife Mary J. (born Jan. 23, 1881, listed as being of Irish descent). With them is someone name ‘Jane Luch (or Luck)’, born Jul 1 1839 of Irish descent, who is listed as a widow and ‘mother’. The dates for Jane and Isaac match what I had, so it is possible that Jane got remarried, and her 2nd husband died before the 1901 census. No children are living in the house at that time.
If this the correct Isaac, then the family had moved to Moose Jaw, SK by the 1911 census, and had 3 sons and 1 daughter by that time.