Leon K. “Kenny” “Butch” Wendell, 73, of Haverhill, died Sunday evening, April 12, at Merrimack Valley Hospice House, after a brief illness surrounded by his family. He was born in Exeter, N.H., July 1, 1941, son of Leon G. and Janice (Fontaine) Wendell. Educated in the Haverhill school system, We