Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Morris R. Jeppson served as a lieutenant in the 1st Ordnance Squadron. He also worked as a weapons test officer. He was the assistant weaponeer on the Enola Gay on the Hiroshima bomb mission.

Related Profiles

Jack L. Callan

Chicago, IL

Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

John W. Lebourveau

Los Alamos, NM

Herbert Blank

Los Alamos, NM

Leon O. Jacobson

Chicago, IL

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.