Thanks Bob for info Found in NEHGR 1971-1972 a hugh BRIGGS family writeup extending over many generations.
My main interest is in the John B Coats who m. the two [believed] sisters...
Parents of John B Coats are Charles Coats & Elizabeth =[my line is thru bro to John =[ Oliver Avery Coats b.c.1797 VT d.bef 1885 WI
This Coats family is very small and elusive...Trying to find additional information by the round-about way...
On 1810 VT census there are 14 Briggs including Elishaof Brattleboro Gideonof Vernon Jamesof Vernon Peter Jr of Guilford Sameulof Brattleboro
on 1820 VT census there are 15 Briggs including Elishaof Brattleboro Gideonof Guilford Hannahof Brattleboro Lewisof Vernon Peterof Guilford Peter Jr of Brattleboro Richelof Brattleboro Williamof Guilford
In your Briggs info, have you encountered the surnameCOATS??