I have just recently learned that there is a will in West Fallowfield Twp., Chester Co., PA with all of the following listed as siblings (half-siblings?): William, Robert, Francis, George, Howard, and Andrew Moore; James and Rebecca Dunn; James and Elizabeth DeVor; and Thomas Karr and Jean Kerr. The date is 1774. I think James and Elizabeth DeVor are the children of John DeVor who died ca 1749. Does anyone know who the rest of these people are?