That's great, many thanks Donna. I don't suppose there is a MI for John's possible parents Thomas Shimmin & Margaret Craine who md 17 Jun 1793 Patrick? The other possible parents who Tim suggested were Philip SHIMMIN & Catharine QUINE who marr. 26 July 1787 Patrick (son John bapt 2 Oct.1796 Patrick).
Their other children bapt in Patrick between 1787 & 1804 were Sarah 1787, Ann 1789, Philip 1792, Thos 1793, Cath 1799, Margt 1802, Willm 1804.

There are several possible mothers' burials in Patrick, but only two I found for possible fathers:
SHIMMIN, Catharine Patrick 16 Apr 1804
SHIMMIN, Catharine Patrick 1 Dec 1806
SHIMMIN, Catharine Patrick 7 Apr 1809

SHIMMIN, Philip Patrick 28 Jun 1822
Will: SHIMMIN, Philip 1822 Pat E 2 [LDS film no.] 0106423

SHIMIN, Margaret Patrick 31 May 1817
Will: SHIMMIN, Margret 1817 Pat E 2 [LDS film no.] 0106419
SHIMMIN, Margaret Patrick 9 Feb 1823
SHIMMIN, Margaret 79 Patrick 15 Mar 1842

SHIMMIN, Thomas 81 Patrick 19 Jan 1842

This Thomas above was aged 80 in the 1841 Patrick census recorded in the previous household to Thomas Shimmin aged 45, Ellen Shimmin aged 15 and Elizabeth Shimmin aged 5. No sign of Margaret. Both Thomas Shimmins Ag Labs.

Margaret Shimmin d.1842 above, was aged 77 in the 1841 Patrick census, independ., with Elizabeth Bell aged 2.
So unlikely to be the husband and wife Thomas and Margaret [Craine].
If the one Thomas burial was correct, then Margaret must have been one of the earlier burials. With luck the 1817 one, who has a will.

Hopefully when Tim sees the par reg film he will be able to separate the two families because of additional details. And the wills are usually even more helpful.

Interesting about the CAIN connection!

Sue