Perry, I have noting to do with this Dyer family, but I live on West St. Plainfield, MA. There is a small cemetery that I have recorded some of the stones. I believe that they are connected to some of the family you are looking for.
Lavinnie M died: Feb 4, 1862
Infent son ? died Dec 11 1848 Children of Dexter & Caroline Dyer
most of the stone are connected to the HASKINS family. I hope this information helps Marnie