Dennis Prue, 68, of Farmington, N.H., died Friday, Nov. 30 at his home. Born in Haverhill on Dec. 22, 1949, he was the son of the late Stewart F. Prue Jr. and Rita M. (Martin) Prue. Educated in the Haverhill school system, Prue graduated from Haverhill High School with the class of 1967 and wa