Regarding the 1704 Composition book which you are currently transcribing, does it indicate a place name for this entry in the Maughold Composition Book 24 July 1691: "[no] 45, Jon Corkill now in the Lo: hands, [Lives in being] +Jon Corkill aged 80 years"?
[LDS film no.106703]
Incidentally, and about Don/Dan Corkills, this is entered same date at no.56 "Ewan Kerush and Edw Callow formerly Don Corkill. [Lives in being] Donald Corkill aged 70 & Donchan Callow aged 55".
So Don/Dan b.c.1621.
Sue