Hi Gadget:
Thanks very much for the lookups. It may be impossible to determine which of the burials applies to Jane although the 2 in 1800 seem (as you say) the more likely.
I did have the marriage of this David ROWLAND and Jane in 1792 but he's a joiner. Could trumpeting have been a ceremonial thing and that he would have to have 2 jobs to get by. I know that he was paid for the trumpeting from Quarter Sessions Accounts but I have no feel for whether it constituted a living or not.
I also have the marriage bond and allegation for his marriage to Anne Evans. The allegation is damaged however with his parish of origin (probably Bala actually) being in a large hole. The bond is similarly damaged with the hole being on the other side obscuring something but probably just the county. He was of Bala in the bond. The allegation gives his occupation as yeoman which does make me doubt the joiner's marriage.
Here is the link for the DWB entry on David ROWLAND jr.
http://wbo.llgc.org.uk/en/s-ROWL-DAV-1795.html?query=David+Rowland&field=name It states that David jr was raised by his grandmother at Cwmtylo which would perhaps imply that his mother would have married in that parish - would it be in Llanuwchllyn?
Anyway, thanks for all your help. It's an interesting family.
Best wishes, Irene