Richard A. Vaughn

John Mench

John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.

L. Smith

L. Smith worked for the Roane-Anderson Company.

Robert Cantrell

Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.

Phillip L. Rothstein