William was the son of David Francis Douglas and Catherine Ellen Sidener. The date and place of his birth have not been found.
He has died but the date and place are unknown.
William Douglas (-?)
David Francis Douglas (1781-1861)
Catherine Ellen Sidener (1782-1855)
Lawrence Sidener (1760-1810)
Martin Leibnitz Seidner (1733-1806)
Margaretha Mira Schotte (1734-1816)
Catherine Fruit (1760-1826)