Joseph G. Jaszkewicz

R. H. Osterloh

Osterloh worked in the 100 F Area at Hanford during the Manhattan Project.  

M.P. Ruggenberg

Leon O. Jacobson

Leon O. Jacobson was Associate Director of the Health Division and Section Chief of H-I, Clinical Medicine and Medical Research, at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Horace R. Hood

Horace Hood set up equipment for the J.A. Jones Construction Company in Oak Ridge, Tennessee. He and his family lived in Kingsport, Tennessee while Hood commuted to Oak Ridge through a series of security checkpoints each day.