Irving E. Bardecker

J. H. Dobbins

Marlan Hennis

Marlan Hennis worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Haskell Sheinberg

Haskell Sheinberg arrived at Los Alamos in late 1944 as part of the Special Engineer Detachment. Sheinberg’s first assignment was to purify plutonium under the direction of Arthur Wahl, one of the co-discoverers of plutonium.

Duffer Crawford

Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.