| Residence | | William Jackson Roberts, Sr., lived in United StatesBGO. |
| Person Source | | He had person sources.1 |
| Birth | 13 May 1860 | He was born on 13 May 1860 in Ponope, Caroline Islands, MicronesiaBG. |
| Residence | 1870 | He lived in East Dalles Precinct, Wasco, OregonBG, in 1870. |
| Residence | 1880 | He lived Marital status: Single; Relation to Head of House: Son in Dalles, Wasco, Oregon, USABG, in 1880. |
| Residence | 1900 | He lived Marital Status: Married; Relation to Head of House: Head in Pullman, Whitman, Washington, USABG, in 1900. |
| Residence | 1910 | He lived Marital Status: Widowed; Relation to Head of House: Head in Medford Ward 2, Jackson, Oregon, USABG, in 1910. |
| Marriage | 15 June 1911 | He and Caroline Odell "Carrie" Wilmore were married on 15 June 1911 in Berkeley, Alameda, CaliforniaBG.1 |
| Residence | 1916 | He lived in Tacoma, Wash. City engineerBG, in 1916. |
| Residence | 1920 | He lived Marital Status: Married; Relation to Head of House: Head in Tacoma Ward 1, Pierce, WashingtonBG, in 1920. |
| Residence | 1930 | He lived Marital Status: Married; Relation to Head of House: Head in Interlaaken, Pierce, Washington, USABG, in 1930. |
| Death | 6 April 1938 | He died on 6 April 1938 at age 77 in Tacoma, Pierce, WashingtonBG. |