He was born on June 18, 1837, in Pitcher, New York the son of Jethro Hatch, Sr. and Minerva Pierce, the daughter of Gordon Pierce and Thirza Smalley.
He was born on June 18, 1837, in Pitcher, New York, to Jethro Hatch, Sr., and his mother-in-law's daughter, Minerva Pierce, who had a family connection through her parents Gordon Pierce and Thirza Smalley.