James F. Holmes

A. A. Carswell

A. A. Carswell worked for the Roane-Anderson Company.

Jack L. Callan

Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. J. Sekeres

E. J. Sekeres served in the 509th Headquarters.

Henry C. Cox