George MANLEY's sister, Melvina MANLEY Swain, is my ancestor.
George and Melvina MANLEY's parents are John and Sarah MANLEY.

I suppose George may have followed his sister and brother-in-law to the Circleville area. Melvina and Thomas SWAIN moved there between 1880 and 1891.

John MANLEY was born in Kentucky about 1818. According to the 1880 census, his father was from Virginia, his mother from North Carolina. His wife Sarah was born in Tennessee, as were her parents. Have you found her maiden name?

The Preston MANLEY, aged 2 in the 1860 census is the same George P. MANLEY, aged 12 in the 1870 census.