Daryl is correct, Gloria...Lois (Crabtree) Johnson is the Curator of the Town of Hancock's Historical Society--is crackerjack on the topic.
That's Riverside Cemetery; and is located on (duh) Cemetery Rd. (out behind the Hancock Elementary School & its baseball field! ) off of Rt. 1 in town.
It's closed during the wintertime; but is fairly well kept up during the rest of the year (in comparison to some cemeteries in ME).
Lois does not use a computer, so call/write to her.
Two-three of my familial lines settled in Hancock (it was originally part of Sullivan), also (Wooster, Crabtree, etc.)--know the area...sorta.
Have fun, Gloria!