1851 personal census, McGillivray Twp, Middlesex Co., ON, image from Library and Archives Canada:
Wm Simpson, Farmer, born Canada, C Rome, 45, M, Married;
Catharine Simpson, , Canada, C Rome, 40, F, Married;
Mary Jane Simpson, , Canada, C Rome, 19, F;
Joseph Simpson, , Canada, C Rome, 17, M;
Ann Simpson, , Canada, C Rome, 14, F;
Eliza Simpson, , Canada, C Rome, 12, F;
Wm Simpson, , Canada, C Rome, 10, M;
Thomas Simpson, , Canada, C Rome, 8, M;
Richard Simpson, , Canada, C Rome, 6, M;
James Simpson, , Canada, C Rome, 3, M.