1  Cornelius MCKAY 
   +  Eleanor MORELL 
      2  Margaret Mary MCKOY (1852 – )
         +  Richard CAVANAGH (7 Sep 1846 Ontario, Canada – bur. Christ Church Anglican Cem, Carp, Ontario, Canada)
            3  Alfretta “Etta” CAVANAGH (14 Apr 1876 Ontario, Canada – )
               +  William Alexander OLMSTEAD (3 Sep 1868 Burretts Rapids, Ontario, Canada – 25 Dec 1920 Fitzroy, Ontario, Canada)
                  4  Margaret Jane OLMSTEAD (28 Oct 1895 Fitzroy, Ontario, Canada – )
                     +  Robert John HANNA (7 Nov 1886 Fitzroy, Ontario, Canada – )
                  4  Leonard Cavanagh OLMSTEAD (1 Jun 1898 Fitzroy, Ontario, Canada – 10 Dec 1899 Fitzroy, Ontario, Canada)
                  4  Richard Percival OLMSTEAD (23 Mar 1901 Fitzroy, Ontario, Canada – )
                  4  OLMSTEAD (1906 Kinburn, Ontario, Canada – Jun 1906 Fitzroy, Ontario, Canada)
            3  Ira William “William” CAVANAGH (13 Feb 1878 Ontario, Canada – 14 Sep 1946 Ottawa, Ontario, Canada)
               +  Ida Mabel STEVENSON (7 Jun 1879 Fitzroy, Ontario, Canada – 1963)
                  4  Alfaretta Doreen CAVANAGH (5 Oct 1904 Fitzroy, Ontario, Canada – 1 May 1976 Ottawa, Ontario, Canada)
                     +  William James Ivan “Ivan” TURNER (13 Oct 1902 Ramsay, Ontario, Canada – 30 Jun 1991 Ottawa, Ontario, Canada)
                        5  Delores TURNER 
                           +  NEILSON 
                        5  Morely TURNER 
                           +  Heather 
            3  Alvira Agnes CAVANAGH (5 Aug 1881 Ontario, Canada – )
               +  Neil Lamont CAMPBELL (14 Sep 1876 Beckwith, Ontario, Canada – )
                  4  Leonard Cavanagh CAMPBELL (14 Dec 1905 Galetta, Ontario, Canada – 15 Oct 1967 Bonnie Lynn Hospital, Vancouver, British Columbia, Canada)
                  4  John Lamont CAMPBELL (29 Mar 1908 Fitzroy, Ontario, Canada – 18 Apr 1982 Royal Columbian Hospital, New Westminster, British Columbia, Canada)
                  4  Duncan Ernest CAMPBELL (15 Jul 1910 Fitzroy, Ontario, Canada – )
                  4  Sheila Marguerite CAMPBELL 
                     +  JONES 
            3  David Ernest CAVANAGH (1 Aug 1885 Ontario, Canada – 7 Jul 1913 Kinburn, Ontario, Canada)
               +  Elizabeth Ann CAMPBELL (16 Jul 1874 Beckwith, Ontario, Canada – 2 Jun 1919 Galetta, Carleton Co, Ontario, Canada)