William David

Henry E. Fritz

Henry Fritz was a chemist in the Special Engineering Detachment assigned to the K-25 Plant in Oak Ridge, Tennesee.

E. T. Macki

William Sehenk

William Sehenk worked on procurement and property at the Metallurgical Laboratory in Chicago during the Manhattan Project.

John Crawford

John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.