+———John MARSHALL (Boston, Massachusetts, USA – )                      |                  +———James MARSHALL (1782 USA – 18 Mar 1852)                  |              +———Abial MARSHALL (26 May 1809 Kitley, Ontario, Canada – 2 Oct 1901 Washago, Ontario, Canada)              |   |                  |   +———Hannah TALLMAN (1786 – 1831)              |          +———Thaddeus Witherhead MARSHALL (28 Apr 1840 Kitley Twp, Ontario, Canada – 15 Apr 1923 Washago, Ontario, Canada)          |   |              |   +———Charlotte FRALICK (1812 Kitley Twp, Ontario, Canada – 28 May 1887 Orillia, Ontario, Canada)          |      +———William Clinton MARSHALL (18 Jul 1887 – May 1944 Orillia, Ontario, Canada)      |   |          |   +———Lillias Andrews KEMP (9 Sep 1852 – 9 Apr 1943 Ottawa, Ontario, Canada)      |  +———Leslie MARSHALL  |   |          |   |   +———Layton GAMMON  |   |   |  |   +———Flora Elsie GAMMON (4 Sep 1894 – )  |       |      |       +———Eliza Jane BLACKABY  |      Terry MARSHALL   |      +———Francis MCCAULEY