The 1850 Pittsburgh, Pa. City directory lists a Thomas Vance as a cabinet maker living Federal, Allegheny City, Allegheny Co., Pa. The 1850 Census lists him as 25, b. Ireland, wife Susanna. He was living with John Boyd and family who were all b. in Ireland. Does anyone know anything about Thomas Vance's siblings? Does anyone know anything about this Thomas Vance? Thanks so very much, Clare