National Museum of Nuclear Science & History
Antonio Tapia was a staff worker at Los Alamos during the Manhattan Project.
W. Maddox worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. M. Schleiden worked for the A. S. Schulman Electric Company.
Hymer Friedell was the deputy medical director of the Manhattan Engineer District at Oak Ridge. He worked closely with Robert Stone and Stafford Warren in studying the effects of radiation on the human body.