National Museum of Nuclear Science & History
Bales worked for Stone and Webster Engineering Corporation.
Allen worked at the 200 West Area at Hanford during the Manhattan Project.
MacDonald worked for Stone and Webster Engineering Corporation.
Warren H. Burgus was a research assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
J. V. O’Connor worked for the Union Carbide & Carbon Corporation.