+———John PLEWES (Feb 1848 Ontario, Canada – )  |      Sarah A. PLEWES (Nov 1890 Ontario, Canada – aft 1911)  |          |   +———Robert THOMPSON (abt 1816 Londonderry, Ireland – 9 Jun 1896 Artemesia, Ontario, Canada)  |   |  +———Elizabeth Jane “Eliza” THOMPSON (8 Mar 1854 Flesherton, Ontario, Canada – 11 Oct 1934 Kimberley, Ontario, Canada)      |          +———Martha Ann (20 Mar 1819 Londonderry, Ireland – 2 Apr 1904 Artemesia, Ontario, Canada)