I know that Sarah French must have remarried after the death of Jacob French August 4, 1776.
A possible choice for her second marriage is Amos Foster of Tewksbury, Oct. 21, 1777. (Billerica VR) There is a death record for an Amos Foster in Tewksbury on Feb. 19, 1798, in his 71st y.
Without a death record under Foster in Tewksbury for Sarah, I believe she married again. There is a marriage record in Tewksbury for "Sarah, and Philemon Dean of Andover, Jan. 29, 1801."
When I looked in https://mhl.org/sites/default/files/files/Abbott/Dane%20Family.pdf (page 9 at the bottom), Charlotte Helen Abbott claims the widow French that married Amos Foster and then Philemon Dean (Dane) was Sarah Richardson who married William French. Billerica VR does have a marriage of William French and Sarah Richardson in 1764.
Unfortunately, the marriage record for Sarah French and Amos Foster is not definitive as to which widow Sarah French he married.
Any help would be greatly appreciated.
