From Easton, PA. Noted as being a student at the Taft School in Watertown, CT in 1935.
An obituary for McKelvy appears in Princeton Alumni Weekly. It states he died in February 1960. He graduated from Princeton in 1939, was a WWII veteran, and formed his own film production company, Graham Freelance, Inc., after the war.
Movie Makers, Dec. 1933, 499.
Movie Makers, July 1935, 318.
Princeton Alumni Weekly vol. 60, May 20, 1960, 23.