| Daughter | Unknown O'Brien+ |
| Pedigree Chart |
| Birth | 7 January 1897 | Robert Emmett O'Brien was born on 7 January 1897 in Illinois, United StatesBGO. |
| Burial | 1954 | He was buried in 1954 in Sacramento City Cemetery, Sacramento, Sacramento, California, United StatesBG. |
| Death | 23 June 1954 | He died on 23 June 1954 at age 57 in Sacramento, Sacramento, California, United StatesBG. |
| Last Edited | 10 June 2020 |