The burial book says this Betsy is the wife of Jonathan Raymond, and is in the same lot with a son Reuben Raymond and his wife Lydia.
The only family that fits this, would make Betsy Elizabeth Robbins, who was Mrs. Jonathan Robbins. If this is her, then we know:
b. 21 Oct 1785, Plymouth, MA
d. 2 Dec. 1873 in Beaver River
m. Jonathan Raymond in 1801
Elizabeth is the daughter of Joesph Robbins and Elizabeth Stephens
Removal: “Old Cemetery” to Island Cem 5 Sep 1900
Lot #62, south side of B avenue