National Museum of Nuclear Science & History
H.W. was a consultant at Metallurgical Laboratory in Chicago during the Manhattan Project.
Heatherington worked for Stone and Webster Engineering Corporation.
Wilbur E. Davis worked at the 200 West Area at Hanford during the Manhattan Project.
Edward Padgett was a staff worker at Los Alamos during the Manhattan Project.
W. H. Sidner worked for the Union Carbide & Carbon Corporation.