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