Monte was born July 30, 1955, to Sam and Flora Overacre in Gooding, Idaho, he was the first of six children, with three brothers and two sisters. Monte was married twice and later divorced. He served 10 years in the U.S. Army as an Army aviator.

Besides his stint in the U.S. Army, Monte served 10 years as a member of the Central Intelligence Agency's covert operations unit. He died in an airplane crash on April 5, 1995; flying above the jungle-covered Sierra de Chúacus mountain range north of Guatemala City, Guatemala. At the time of his death, Monte was survived by his parents and three children - Chase Overacre, Mary Jo Overacre and Mattie Overacre-Wong.

Prominent amongst Monte's interests was singing and playing his guitar. His U.S. residence was Austin, TX.

An interesting and extended article on Monte's life and involvement in the CIA, can be found at http://www.motherjones.com/politics/1998/01/left-out-cold