Thanks for the thoughts re Jeffrey Galloway of 1610;

According to the article in the IOMFHS mag, Jeffrey Galloway died in prison in 1610, but had married a Manx girl in the early 1590s, so must have settled in Castletown at least a decade prior to the Union of the English & Scottish Crowns in 1603.

THe comment re Ursula being an "up market" version of a Gaelic name is interesting. In some cases, as is well known parish clerks Anglicised Manx names, and in my father's family there is an example of this with a Caralagh being revised to "Careful".

If it was a parish clerk who was going up market, then there would probably be a batch of girls called Ursula, so that seems unlikely.
It seems fair to assume that the daughter Ursula, who never married, was a genuine Ursula to begin with, but if the idea of an upgrade is correct, that the girl who married into the family was the one who was upgraded.

Robert