National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
Redro Velasquez was a staff worker at Los Alamos during the Manhattan Project.
M. L. Olsgaard worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Adolph Zorner worked at a shop at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.