Lavonne Osterlund

Joanna Brumfiel

Joanna Brumfiel was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frederick Trapnell

Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

D. I. Graham

H. D. Lanterman

H. D. Lanterman worked for the Union Carbide & Carbon Corporation.