Right, apologies if I'm overlooking the obvious :
1766 15 Jul - James Tinning m Jane Wilson
1767 3 Aug - James Tinning m Jane Graham
So possible children of these two couples:
1768 25 May - Mary Tinning Baptised
6 Sept - James Tinning Baptised
1769 20 Dec - John Tinning Baptised
1770 28 Jan - John Tinning Baptised
4 Mar - James Tinning Baptised
1772 12 Jul - Mary Tinning Baptised
25 Nov - Elizabeth Tinning Baptised
1775 30 Jan - John Tinning Baptised
1777 27 Apr - Reginald Tinning Baptised
1778 9 Nov - William Tinning Baptised
1779 28 Mar - Jane Tinning Baptised
1782 6 May - Jane Tinning Baptised
1785 1 Mar - David Tinning Baptised
1791 14 Aug - Elizabeth Tining Baptised (Jane Graham)
So...if "my" Mary Tinning was the one born in 1768 (which would fit with dates), then the one bapt 12 Jul 1772 would more likely be the child of the "other" James & Jane. And, the Elizabeth bap on 25 Nov 1772 is more likely to be "my" James & Jane???
So...wouldnt the Elizabeth bapt in 1791 with the mother Jane Graham be more likely to be the "other" James & Jane? ie Is my Jane, Jane Wilson? I suppose if the above Elizabeth born in 1772 died then they would very likely give her name to another child. But, and I may be wrong, I dont think I've found a death for this Elizabeth before 1791.
Confused.Com!!