Looking for parents of James GIBSON of PA. James GIBSON was b orn 1815 in PA & married Sarah J. GRAHAM  (also called Margaret).  They l ived in Sharpsburg, Allegheny County  from at least 1850 to 1877.   Just found a new clue -- James and Sarah GIBSON's  ancestors were pioneers in the steel and iron industry in Pennsylvania and people of wealth and influence in their day. Anyone familiar with the GIBSONS who were in PA Iron & Steel industry?  If so, could you tell me about them?  Do you see any connections to my James GIBSON?