M, b. 1872
| Birth* | 1872 | William F Brien was born in 1872 at California . |
| (with Parents) Census1880 | 21 June 1880 | He appeared on the 1880 Census of Ferndale, Humboldt County, California in the household of his parents, Joseph Andrew Brien and Anna E (?) |
| (with Mother) Census1920 | 4 January 1920 | William F Brien appeared on the 1920 Census of Oakland, Alameda County, California in the household of his mother Anna E (?) |
| Marriage* | 1924 | William F Brien married Mary Lee (?) in 1924. |
| Census1930* | 4 April 1930 | William F Brien and Mary Lee (?) appeared on the 1930 Census of Oakland, Alameda County, California, at 5729 Vicente Street, enumerated 4 April 1930. |