I believe I may have the information you're looking for. My mother came from this line of Christie's.
I have Daniel McGillivray born 13 Nov 1868 St. Elmo, Ontario; married 27 Jun 1893; died 24 May 1947 Cornwall, Ontario. His wife was Janet Ann Christie born 10 Dec 1870 Apple Hill, Ontario; died 31 Dec 1964, Cornwall, Ontario. Her parents were John D Christie born 24 May 1840 Apple Hill Ontario, died 16 Jan 1925 and Janet Miller born 1841 Roxborough Twp., Ontario; married about 1866 Died 19 Dec 1870 Apple Hill, Ontario. A few years after her death John remarried to Catherine McKinnon, born 26 Apr 1855 EHT, Ontario; Married 28 Jun 1876; died 8 Nov 1926, Apple Hill, Ontario. Their first child was John Colin Christie, my maternal grandfather.
Janet's Grandfather, John D.'s Father was John Christie, born 1796 Tirarthur Croft, Killin, P, Scotland; died 22 Aug 1872. His first wife was Janet McArthur, born 1802 Martintown, Ontario; mariied 21 Nov 1826; died 6 Nov 1884 Apple Hill, Ontario. John D was the last of 6 children.
If you would like more information, send me your email address. I have lists of several generations after John Christie. I also have pictures of gravestones at App;e Hill that will confirm names and dates.