One thing that the pew purchase document shows is that Leticia, the wife of David of Foss, was a widow at this date so I've revised his death-date from 'before 1769' to 'before 1764'. Further careful reading of other docs show that she is a widow in 1762 as per the Indent. that shows the 'fine', along with Elizabeth Richards, widow.
A lot seems to have been happening at around this date. Indentures show Thomas purchasing Penbryn and Bryn Issa from Edward Richard, Schoolmaster in 1756. (His son David is still at Strygos). Thomas and his wife move to Penbryn and remain there until 1764.
We then have a completion of that purchase dated 1764 and, in the same year Thomas sells the property to William Davies and then, in the same year is shown granting a mortgage to Williams wife, Elizabeth Davies, who is now shown as 'widow'. David and Elizabeth Richards, plus the 4 children, must have moved to Bryn Issa when he gave up Strygos in 1770.
Working on the pregnant marriage syndrome, Jane marries Owen, the son of the above William and Elizabeth Davies in 1794 when she had her first child. (At this date, Owen was 60 years old - Jane was 37...they had one more child during 1795).
When Elizabeth Davies dies, her next of kin is her son Owen. When Owen dies in 1812 his wife Jane inherits Penbryn and Bryn Issa and, when she dies in 1822, the Rev. John Richards is left Bryn Issa. This property is shown in his will of 1832.
Narrowing the dates of death in this manner produces some results but takes time and a lot of detective work but it keeps us on our toes and helps to clarify the overall picture of this family.
I remember an indent' from the days of David and Goley, where part of the purchase agreement is that the path to Pontargamddwr remains open.
Regards from Peter.