Donna, Maughold parish registers record only that Edward the illegitimate son of Claudius Quayle and Cath Corkill was baptised 4 May 1828 - no place given.

I think being born at Ballajora probably identifies the mother's residence rather than the father's. Did this information come from a family bible or other original source?

There was a Cath Corkill b.1802 dau of Thos Corkill & Margt Fargher who farmed at Ballajora, who could possibly have been the mother.

I still think wills could be your best source.

Sue