Edwin J. Ziegler

Joanna Brumfiel

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

A. O. Groth

A. O. Groth worked for the Tennessee Eastman Corporation at the Y-12 Plant.

H. G. Kercher

H. G. Kercher worked for the J.A. Jones Construction Company.

Robert G. Boardwine