+———Arthur STEVENSON (bef 1790 Ireland – )          |      +———Thomas STEVENSON (1808 Killyleagh Par, County Down, Ireland – 14 Feb 1896)      |  +———Dr. Hans STEVENSON (3 Apr 1853 Wakefield, Quebec, Canada – 4 Nov 1911 Wakefield, Quebec, Canada)  |   |          |   |   +———James PRITCHARD (1783 Currin Par, County Monaghan, Ireland – 10 Jun 1880 Wakefield Twp, Quebec, Canada)  |   |   |  |   +———Ann PRITCHARD (1811 Clones, County Monaghan, Ireland – 10 Oct 1895)  |       |      |       +———Judith FERGUSON (1788 Currin Par, County Monaghan, Ireland – 29 Dec 1852 Wakefield Twp, Quebec, Canada)  |      Ella Gertrude STEVENSON (11 Oct 1889 Wakefield, Quebec, Canada – 29 Sep 1967 Wakefield, Quebec, Canada)  |      +———Mary Margaret CANN (10 Apr 1863 Ontario, Canada – 21 Feb 1924)