John and Martha Henderson are said to have come to America from Belfast Ireland about 1812. By 1820 their daughter, Ann Jane Henderson, was married to David Kendrick and living in Columbiana Co Ohio. By 1840 David and his family were in Portage Co Oh. In 1850 they are in Kent Ohio, same county, and the widowed Martha Henderson is next door in the home of David Kendrick's daughter, Sarah Ann (Kendrick) Shorts. Martha Henderrson died in 1851 and is buried in the old Pioneer Stow Street Cemetery. Her tombstone says she died "aged 72". I do not know when or where John Henderson had died. Nor do I know the names of any other children of John and Martha. Any help appreciated.