Can anyone help with this Jane Corkill in Kirk Michael burial register please?

Jane Corkill als Corjeag aged 96 yrs Augt 26 1845 KM [1749]

I suspect her to be the Jane, widow (of Richard), who married William Corkill widower of Maughold 4th Nov 1803 in Kirk Michael.

I’m also tempted to believe this is her in 1841, although the age is about 10 years too young:

(1841) Mony Mollagh, Michael HO 107/1464 es18 p4(ED 2)
Jane Corkhill – 80 – Ind. – IOM [before 1861]
Ann Cavendish – 40 – IOM [before 1801]
Duncan McGuinness – 60 – Ind – Ireland

If that is the same Jane, it could mean that husband William died between 1803 and 1841.
I am hoping to find:

a MI for Jane Corkill buried 26 Aug 1845 Kirk Michael (although born Lezayre)
a MI for William Corkill buried 1803-1841 Kirk Michael (poss. 1809) or Maughold (poss. 1823)

There are a huge number of William Corkills buried in Maughold in the time frame, but only one in Michael, according to Brian Lawson’s index: CORKILL, William, Mic, 7 Feb 1809

It would be perfect if I could find a Will for either Jane or William, but again there is nothing obvious in Brian’s indexes, although the following is tempting as a possibility for William, especially as there is no corresponding burial in Michael.

CORKILL, William, Mau, 10 Mar 1823 [burial]
CORKILL, William, 1823, Mic, A, 38, 0106243 [Will]

Before I get too excited I have to remember that Brian’s indexes are said to be incomplete and these may not even be for the same people.

Does anyone know anything about this Jane & William, even to disprove the connection I want?
Or already seen this or other relevant Will?
Or know if there is an MI for them?

Thank you in advance.