Kenneth P. Mosely

Leon Overstreet

Oklahoma-born Leon Overstreet went into construction in 1941 after he learned a little pipefitting with American Can in Kansas City.

Seymour Calvert

Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.

C. V. Griffin

Harold L. King