F. A. Peck

H. L. Sterling

Myrtle E. Karcher

Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Doyle Stephenson

Doyel Stephenson worked for the J.A. Jones Construction Company.

V. E. Helgesen

V. E. Helgesen worked for the William A. Pope Company.