Hi - that's what I mean about the dates being out of kilter. The M.I. has PETER CORKILL of Ballachrink in this parish who died February 1st 1822, and it can't be Peter Senr because his wife was Jane! Also the aged 50 is right for Peter Junr.
The burials are recorded as Oct 4 1822, and Jan 29 1823, so the Feb 1 death date doesn't fit either burial.

The wills look as though Peter Senr died first, and his son died before the estate was distributed.

Maughold bapts:
Peter son of Peter Corkil & Jane Corkil bapt Parish Church 19 Jul 1772
John son of Peter Corkil & Jane Corkil bapt Parish Church 26 Jun 1774. Private baptism.

Peter Corkil & Jane Corkil married 6 Oct 1771.

Sue