Donald A. Caldwell

Daniel Duracka

Alexander D. Scott

Alexander Scott was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.

K. Langosch

K. Langosch worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.

Elwin H. Covey

Elwin Covey was an assistant and protégé to Glenn Seaborg, and spent most of his time with the Manhattan Project at the X-10 plant in Oak Ridge, Tennessee.