National Museum of Nuclear Science & History
Charles Rogers was a staff worker at Los Alamos during the Manhattan Project.
Winford D. “Doug” Crossland was a design engineer at the K-25 Plant at Oak Ridge, TN during the Manhattan Project and a member of the Special Engineer Detachment.
Sadelle T. Greenblatt was a research assistant in the Instruments Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.