National Museum of Nuclear Science & History
Fred Atkinson worked for the H. E. Anning Company.
Louis J. Hefferman served in the 1395th Military Police Company, Aviation.
Swanson worked at the 100-D Area at Hanford during the Manhattan Project.
John Perry Howe, Jr. was Associate Director at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
