National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
Castens worked for Stone and Webster Engineering Corporation.
Earl Thomas was an American physicist. After receiving his Ph.D. from CalTech in 1943, he moved to New Mexico to work with the Navy on rocket design and production for the Manhattan Project.
Julius “Osty” Ostspowicz was a glassblower in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
