In the War of 1812, he was lieutenant in the militia company from Botetourt County, and served in the defense of Norfolk, Virginia from the British.
He also owned a grist mill on the Warren County Canal's Lock 3, southwest of Lebanon.
Whitehill was briefly out of office in 1830, during which time he bought a farm three miles north of Lebanon in Turtlecreek Township.
Josiah Morrow, the historian of Warren County, wrote of him: Whitehill died in Columbus at age 74.
[2] As of July 2023, the Ohio Treasurer's office web site lists his surname as Whitehall.