National Museum of Nuclear Science & History
Frank Graham worked for the Midwest Piping and Supply Company.
Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Julia Mangan worked for the A. S. Schulman Electric Company.
Keplinger worked in the 100 D Area at Hanford during the Manhattan Project.
Dr. Lloyd F. Craver was a consultant for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
