National Museum of Nuclear Science & History
W. G. Butler worked for the J.A. Jones Construction Company.
R. P. Miller served in the 509th Headquarters and Base Services Squadron.
Heater worked at the 100-D Area at Hanford during the Manhattan Project.
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
