William Caswell [#6] m. by 1686 Mercy Lincoln, d/o Thomas Lincoln and Mary Austin, b. Taunton 3 Apr 1670, living 6 Jun 1752 [citing Bristol deed Vol. 5, p. 487, which she acknowledged on that date ("Bristol Ss Taunton June ye 6th Day 1752 then ye above named Marcey Caswell personally appeared & acknowledged...")].
See the will of Mercy's brother Jonah Person:Jonah Lincoln (3) which bequeaths to children of "my Brother William Caswell & my sister Marcey his wife".
