John L. Brill

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.

Clinton B. Gass

Clinton B. Gass was a G.I. at Los Alamos who worked in the Special Engineer Detachment unit under the Theoretical Physics Division, headed by Dr.

Everett C. Parent

G. W. Reel