P. E. Loew

Seymour Calvert

Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.

Harry E. Stephon

Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Hugo W. Lanouette

Ed O’Black

O’Black worked in the 200 East Area at Hanford during the Manhattan Project.