Hart was born in Vienna Township, Trumbull County, Ohio.

He purchased the Democratic newspaper "Portage Sentinel" in Ravenna, Ohio, which he edited until he sold it in 1857.

He resumed the practice of law in Washington, D.C. Hart's wife, Phebe, died in 1868.

[4] Hart died in 1910 and is interred in Maple Grove Cemetery, Ravenna, Portage County, Ohio US.

[5] This article incorporates public domain material from the Biographical Directory of the United States Congress