So there's no way to know if anyone in the McClellan family participated in the UGGR or donated land for Chambersburg's black cemetery? Or whether it's possible that Chambersburg innkeeper John Miller (father of William Miller and grandfather of Dorothy Miller Hesser) purchased the freedom of Hannah Strange Berry who later married Uriah Wise? The Wise family lived near North Franklin on Miller Street, named after 1900 for William Miller. These stories are published as oral histories in Some Chambersburg Roots: A Black Perspective, 1980, compiled and edited by Stella M. Fries, Janet Z. Gabler, and Reverend C. Bernard Ruffin. Thanks for the clarification re: John M. Cooper. Further digging indicates that he was a Democrat who worked for Attorney General Jeremiah Sullivan Black in Buchanan's administration.