Unfortunately, the above Arp family (Claus & Greta Arp & children, including daughter Augusta) emmigrated from Germany (Schweig-Holstein) in the 1880s, more than 20 years AFTER your James Reuben Arp in Armstrong Co, PA. Per the 1880 Census, the parents of James Arp were born in PA, as was James himself (he was born about 1818 in PA). Do you know where your Arps originated? Were they from Schweig-Holstein?