R. G. Matthews

Albert L. Evand

Albert L. Evand was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Walter C. Youngs, Jr.

Walter Youngs, Jr. worked for the United States Engineer District Office.

Jewell F. Gatlin

Gatlin worked in the United States Engineer District Office.

Marvin B. Lutzow