William GREIG's parents: John GREIG (1770- ) and Sophia MILNE (1770- )

William GREIG's siblings: George GREIG (1800-1886), Alexander GREIG (1802-1888), John GREIG (1805-1892), James GREIG (1808-1861), Benjamin GREIG (1809- ), Andrew GREIG (1814-1886) and Charles GREIG (1816-1907)