I am looking for any info on parentage and descendants of JAMES O'HEARN of Ohio who married Mary Hammond (rough estimate 1840) in Ohio and had (1) Mary F. O'Hearn, m. Frank Hopkins.Mary was alive in Chicago in 1911. (2) Anna O'Hearn, m. W.S. Hunter of Newell, Iowa; alive in 1911 (3) Marie O'Hearn, m. Noah Phillips of Muscatine County, Iowa (4) name unk. d. before 1911 (5) name unk. d. before 1911 This has been a frustrating search because the name is spelled so many ways, and I don't find any close matches in the census indexes for Ohio for the 1820s, 1830s, 1840s, the time period I'm interested in. I don't even know what county in Ohio. Someone out there please help!