Hello~ I was checking 1880 census for "missing persons" and found a likely candidate who showed up in the household of the State Penitentiary in Allegheny County, PA. If I have the right person he was born in Delaware County. Does anyone know if there would be state penitentiary records dating back to 1880 and if so how/where one would write to request them? I'm wondering what caused his new living arrangements. Thanks! Kathy