Addison Township, Somerset County, Pennsylvania 1880 Census 

Unknown. "Addison Township, Somerset County, Pennsylvania 1880 Census ." Library Catalog, , https://genpa.r2infosys.com/s/library/item/9169.

Unknown. "Addison Township, Somerset County, Pennsylvania 1880 Census ." Library Catalog. Accessed . https://genpa.r2infosys.com/s/library/item/9169.