+———Robert THOMPSON (abt 1816 Londonderry, Ireland – 9 Jun 1896 Artemesia, Ontario, Canada)      |  +———Robert THOMPSON (1845 Ireland – 5 Jun 1935)  |   |      |   +———Martha Ann (20 Mar 1819 Londonderry, Ireland – 2 Apr 1904 Artemesia, Ontario, Canada)  |      Martha Ann THOMPSON (Apr 1872 Grey Co, Ontario, Canada – 17 Oct 1937 Rudyard, Michigan, USA)  |          |   +———Charles IRWIN (1814 Fermanagh, Ireland – 1889)  |   |  +———Mary IRWIN (1845 Fermanagh, Ireland – 4 Oct 1892 Artemesia, Ontario, Canada)      |          +———Effie HEMPHILL (11 Apr 1817 – 26 May 1910)