National Museum of Nuclear Science & History
J. B. Mullins worked for the J.A. Jones Construction Company.
Bumpus worked at the 100-B Area at Hanford during the Manhattan Project.
Olney Dean worked for the Kellex Corporation at the K-25 Plant.
Sadelle T. Greenblatt was a research assistant in the Instruments Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Lawrence Sperry worked for the United States Engineer District Office.
