Frank J. Brady

Gregor G. Dietz

Donald A. Todd

Donald Todd was a staff worker at Los Alamos during the Manhattan Project.

Raymond Schwartz

Raymond Schwartz grew up in West Allis, WI. After graduating from high school, he worked as an apprentice machinist for Allis Chalmers Corporation, until enlisting in the Army in February 1943.

Harold Lichtenberger

Harold Lichtenberger was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.