Jacob O'Brien1
#34479, (circa 1831 - )
| Father* | Cornelius O'Brien1 (c 1798 - ) |
| Birth* | circa 1831 | He was born circa 1831 at MissouriG.1 |
| 28 October 1850 | He appeared on the census of 28 October 1850 in the household of Cornelius O'Brien and Theresa Duclos at Concord Twp., Washington Co., MissouriG; (neis. Alexander and Julia Duclos; Charles and Keziah Duclos; Michael and Clarissa Flynn; Lawrence and Catherine Flynn.)2 |