John Hamler was born in 1817 in Lancaster County, Pennsylvania and was a son of Mary and Alexander Hamler.
In 1843, in Crawford County, Ohio, John Hamler and Mary Hollingshead, daughter of Richard and Catharine Hollingshead of Pennsylvania, were married. The Hollingshead family had settled in Morgan County, Ohio, in 1827.
John and Mary Hamler became residents of Marion Township, Henry County, in 1846. They had six children.
When they came to the county in 1846, there were three other residents of the region. The cabin they lived in had neither doors nor windows.
John Hamler was elected a county commissioner in 1850. He was appointed postmaster of Ridgeland, Marion Township, by President Buchanan.
He was a farmer, a land tracer and agent for real estate investments.
Mary Hamler married Jesse Hitt; Ellen Hamler married George Fredericks, and Sarah Hamler married Richard Ebersole.
Submitted by the Henry County Historical Society, and not by the family.