have thought of all that you have said. got the rough years of birth for john killey and mary callow from two different sources who have been doing killey family tree. think?! that I saw ages on marriage record somewhere, yonks ago. have been didding for the killeys for years and keep leaving them alone as hopeless and then coming back to them.
BUT, thought i had said that on the original record that I saw at the mormon place that the marriage record said that they were marrying by licence and with parents consent. which i took to mean that at least one of them was under age. otherwiswe they wouldnt have needed parents consent.
the mary/ cath line of thought comes from another branch of my family tree. I had amarriage cert for a couple that said she was elizabeth, which she is on all the censuses. couldnt find her but found man with her fathers name, occ. etc, with a daughter born same year, village called maria elizabeth. my elizabeth had a daughter called mary lizzie and i was positive that it was her. wasnt until the 1911 census came out this year that i found my family and my elizabeth for the first time gave her full name as maria elizabeth! so I had her pinned down at last!
that is why I thought it might be worth looking into mary callow actually being baptised by another name, which she never used until all those years later she decided she might like to. but I do agree that it might well be a flight of fancy undertaken due to desperation! love jane xxx