National Museum of Nuclear Science & History
M. K. Walsh worked for the Roane-Anderson Company.
Theodore Petry (1924-2018) was a laboratory helper at the Chicago Met Lab. He was recruited while still in high school.
Melvin A. Jones served in the 320th Troop Carrier Squadron.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.