Sue: Jim Caola of Philadelphia, a McCardle descendant, found a reference to a James McCardle in a list of Irish immigrant slightly earlier (I think 1729-1745 or so). The reference to a McCardle family coming over in the 1750s comes from Mike Baron of England and he says it is based on family legend not documented. The McCardells of Maryland have a story about "there were three McCardle brothers who came to AMerica; one to New Jersey, one to Maryland, one to St. Louis." There is a Patrick McCardle in western Maryland, then Pennsylvania in the mid 18th century.