William McClellan, farmer, was born in Sullivan County October 14, 1809, the son of Abraham and Nancy (Moss) McClellan, the former born in this county in 1788, the son of Abraham, Sr., a Scotchman, whose occupation was farming.
The father [Abraham McClellan], a prominent farmer, was State senator for two terms, and a member of the convention to revise the state constitution. He was in the Indian war of 1836, and the following year became a Congressman and served three terms, during which time our subject was with him at Washington as his private secretary.
In 1866 he died after several years of retired life. The mother [Nancy Moss] was born in 1788 in this county. The parents were of Irish origin.