National Museum of Nuclear Science & History
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
M. M. MacDonald worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Donald L. Wolf served in the 603rd Air Engineering Squadron.
C. A. Lindenmeyer worked for the Midwest Piping and Supply Company.
