Background
Dart, Jack Calhoon was born on August 14, 1912 in Concord, Michigan, United States. Son of James Laurance and Ethel Lenore (Calhoon) Dart.
Dart, Jack Calhoon was born on August 14, 1912 in Concord, Michigan, United States. Son of James Laurance and Ethel Lenore (Calhoon) Dart.
AB, Albion College, 1934; Biosystems Engineering, University of Michigan, 1935; Microsoft Security Essentials, University of Michigan, 1937.
Chemical engineer, Pan American Reformed, Texas City, Texas, 1937-1944; chief engineer, Esso Labs, Baton Rouge, 1944-1947; manager research laboratory, Houdry Process Corporation, Philadelphia, 1947-1955; vice president, Houdry Process Corporation, Philadelphia, 1955-1962; owner, J.C. Dart and Associations, Potomac, Maryland., since 1962.
Member School Board Nether Providence, Wallingford, Pennsylvania, 1961, 62. Fellow American Institute Chemical Engineers (Distinguished Service award 1974, founder).
Son of James Laurance and Ethel Lenore (Calhoon) D. M. Widder, June 16, 1940, (wid. May 1990); children: Dianne Gibson, Linda Dart, Janis Cook, James.