Age of Schoolhouse?

That is the Hickory Grove College Home in York County Pennsylvania. It’s being torn down for a improvement. I’m aside of a historic society and I’ve gathered loads of data on this constructing. I nonetheless am not sure of round when it was constructed. Earliest document I’ve is a map from 1867 the place it’s listed however that might have been an earlier construction. That is likely to be the most effective we are able to do however I figured I'd strive right here.