Melvin was born in 1932 in O'Conner, Nebraska to Walter H Flint and Minnie J (Garringer) Flint.
Melvin is commonly known as "Mel."
Mel's brothers were Kenneth Leeroy Flint, Walter Dwayne Flint and Darrell Flint. Mel's sister is Helen Maxine (Flint) Bond.
Mel was married twice. His first marriage was to Ethel Flint. Their sons were Gene E Flint and Terry Dean Flint. Their daughter was Cynthia (Flint) Herrick.