I show Peter, Peter Jr., and Joseph Black all enumerated on the 1820 Fed. Census of West Pennsboro Twp. Cumberland Co. PA.The 1810 F.C. shows John Black in the same area. I'm interested in these families because of their close proximity in West Pennsboro to my ancestors, the George ZINN family.George Zinn Jr. m. Maria Black in 1822.I'm trying to locate her family, any clues?