I note from your post that two of Rebecca Swigart's children were named John and Barbara Ann. That may be just coincidental but John Swigart b. approx 1793 (about) and Barbara Ann Young b. approx.1795, married in 1816 in Richfield Ohio were both born (probably in Penn). A search of a Rebecca Swigart at familysearch.org yielded a Rebecca Swigart (Sweigart) born about 1832 in Ohio to John P and Barbara Swigart (Sweigart). John and Barbara Ann Swigart were my gg grandparents. I am attempting to trace their roots. Perhaps John and Barbara may have had another daughter that family history is not aware of.