R.C. Sievers

E. R. Clark

George T. Heatherington

Heatherington worked for Stone and Webster Engineering Corporation.

N.F. Bowman

N.F. Bowman was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Manuel Schwartz

Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.