In my second reference to Rev. Rogers' work it should have read:
"William b. abt 1513 I have married to Margaret (Margery) Sophia Kennedy. I show his death as 1538, again based on Rev. Roger's book on the Wallace family which can be extremely confusing because he lists very FEW dates of birth or deaths, and in some cases I think he may confuse the Johns and Williams and who SUCCEEDS whom."
Sorry for the confusion.