If they were listed in the St. Finnan's records the place of marriage would have been St. Finnan's Church in Alexandria. I have St. Finnan's records but there is no listing which is strange. There is a listing of their daughter Mary Jane married to Alexander MacDonald 17 Feb 1890 with Alex from Lot 35, 3rd Lochiel. Also listed are births of daughters Ester, Mary Agnes and son John Ranald. Mary MacPhee's parents were Archibald MacPhee and Isabella MacGillivary. His grand parents were John MacPhee and Margaret Peggy MacGillis and his great grand parents were Alexander Roy MacPhee and Catherine MacAlpin from Aberchalder, Inverness, Scotland. They came July 3, 1802 and Alexander Roy was my 3rd great grand father. Our family lot was Lot 34 on Eigg Road (3rd Lochiel) so we were next door to Mary Jane Timmings and Alexander MacDonald who were on Lot 35. I notice that the a sponsor for their John Ranald at St. Finnans was a Mrs. Harriet MacDonald and this was probably my grand mother. Nothing further on William Timmings.
Following is a 1881 census for Timmings which you may have.
Name Marital Status Gender Ethnic Origin Age Birthplace Occupation Religion
William TIMMINGS M Male English 40 Quebec Labourer Church of England
Mary TIMMINGS M Female Scottish 39 Ontario Catholic
Mary J TIMMINGS Female English 15 Ontario Catholic
Alexander TIMMINGS Male English 13 USA Catholic
William TIMMINGS Male English 11 USA Catholic
Annie TIMMINGS Female English 7 Ontario Catholic
George TIMMINGS Male English 4 Ontario Catholic
Census Place Hawkesbury, Prescott, Ontario
Family History Library Film 1375864
NA Film Number C-13228
Page Number 12
Household Number 52