National Museum of Nuclear Science & History
W. R. Chambers worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.
Robert J. Arnson served in the 1st Ordnance Squadron.
Crenner worked at the 300 Area at Hanford during the Manhattan Project.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.