carmarthenshire-llanfihangel-ar-arth and llanegwad

[gregjohn]

We have established my wifes 7 x great-grandfather was Jenkin Griffith of Altwalis,LLanfihangel-ar-arth,who died either 5th Jan 1690 or 2nd May 1691.
He was a yeoman and left sons John,Thomas, and Griffith Jenkinand several daughters.

We are trying to find out.
Who his wifes name and where did she originate.
Who were his parents and where from too.

His eldest son John died 4th April 1720 at Nantlech Farm,LLanfihangel-ar-arth,leaving a wife Mary.
We would also like to know where did she die and when

Can anyone help us with these brick walls.