Douglas was born about 1821, the son of unknown parents. The place is not known.
His wife was Jean McCreath, who he married on 27 JUN 1855 in Port Glasgow. Their four known children were Margaret P (1856-?), Douglas (1858-1925), John McCreath (1860-?) and Mary Campbell (1862-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1821 |