National Museum of Nuclear Science & History
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
Marshall Holloway was an American physicist. He received his PhD in physics from Cornell University. In 1942, he directed a secret Manhattan Project assignment at Purdue University.
J. J. Donovan worked for the H. K. Ferguson Company.
Robert Rogers was a staff worker at Los Alamos during the Manhattan Project.