Thomas could be the brother of Elizabeth - their father died 1811 (will summarised on MNB)leaving several under age children, his MI in Andreas is next dor to two Ballacrebbin Radcliffe graves - couldn't find family in 1841 so possibly 2 or more of children emigrated - remember that it was a Dr Harrison who was credited as so praising the land in Ohio that some Manx started the emigration there in early 1820's and trailblazed for the mass emigration a few years later