W. C. Livermore

John Douglas Cockcroft

John Douglas Cockcroft was a British physicist and recipient of the 1951 Nobel Prize in Physics.  He was a member of the Tizard Mission to the United States in the autumn of 1940.

Tom N. LoPresto

F. A. Lehmann

F. A. Lehmann worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Marietta C. Moore

Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.