The Mason WebWilliam Mann Blackford
M, b. 8 September 1915, d. 3 June 1988
| Father | John Minor Blackford b. 1 Feb 1887, d. 12 Sep 1945 |
| Mother | Elizabeth Jackson Mann b. 1 Oct 1886, d. 12 Jul 1967 |
William Mann Blackford married Jane Horton Griffiths at Seattle, Wa.. William Mann Blackford was born on 8 September 1915 at Rochester, Mn.. He died on 3 June 1988 at Seattle, Wa., at age 72.