I too have unearthed links with the parish church at Petty: some of my ancestors were married and/or had their children baptized there (mostly in around 1820s). This is a bit of a long shot, but we have no date of death/place of burial for a few of these folk, and I should be extremely grateful if anyone who has access to MIs for here could let me know if they contain references to any of the following:
Thomas Davies died 1840
Isabella Matthews (wife of above; died some time after 1840)
Lachlan Mackay born 1792
Margaret Davies born 1794 (wife of above)
Lachlan Mackay born 1827 and Sophia Mackay born 1825 (children of above pair)
Margaret MacDonald born 1824
Jane MacDonald born 1826
Many thanks -- and I, too, am on the list of Rootschatters who hope to visit here one day! (Perhaps we should organise a Rootschat Delegation Visit

!)