National Museum of Nuclear Science & History
J. S. Gehrken served in the 390th Air Service Group.
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.
J. G. Pettis worked for the Roane-Anderson Company.
Knight worked in the 200 West Area at Hanford during the Manhattan Project.