+———James JOHNSTON (9 Mar 1833 Huntley, Ontario, Canada – 19 Jun 1902 Huntley, Ontario, Canada)          |      +———Henry Forbes JOHNSTON (12 Oct 1873 Huntley, Ontario, Canada – 11 Dec 1920 Saskatchewan, Canada)      |   |          |   +———Rachel SHAW (25 Oct 1841 Fitzroy, Ontario, Canada – 19 Feb 1887 Huntley, Ontario, Canada)      |  +———Henry Osler JOHNSTON (14 Aug 1907 Carleton, Ontario, Canada – 1967)  |   |              |   |       +———John OLIVE (1788 Borriskane, Ireland – 27 Apr 1867)  |   |       |  |   |   +———John OLIVE (4 Dec 1835 Huntley, Ontario, Canada – 23 Jul 1918 Huntley, Ontario, Canada)  |   |   |   |          |   |   |   |   +———William CAVANAGH (1759 Tipperary, Ireland – abt 1819 Tipperary, Ireland)  |   |   |   |   |  |   |   |   +———Mary CAVANAGH (abt 1800 Tipperary, Ireland – 16 Oct 1867 Huntley, Ontario, Canada)  |   |   |       |      |   |   |       +———Elizabeth “Eliza” DONNELLY (abt 1769 Tipperary, Ireland – abt 1829 Tipperary, Ireland)  |   |   |  |   +———Ida Priscilla “Priscilla” OLIVE (15 Jul 1874 Ontario, Canada – 11 Feb 1973)  |       |          |       |   +———John REID (Apr 1807 Limerick, Ireland – 28 Sep 1891 Huntley, Ontario, Canada)  |       |   |  |       +———Sarah REID (1838 Ontario, Canada – 14 Jun 1882 Huntley, Ontario, Canada)  |           |      |           +———Susan Frances MOONEY (Tipperary, Ireland – 31 Dec 1897 Huntley, Ontario, Canada)  |      John David Forbes JOHNSTON (16 Oct 1948 Swan River, Manitoba, Canada – 4 Oct 1993 London, England)  |      +———Eva BRISTOL (28 Apr 1911 Grey, Saskatchewan, Canada – 13 Mar 1998 Camrose, Alberta, Canada)