B. R. Hennigar

A. H. Jopp

Arthur Buck

Arthur Buck was a security guard for the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.

Bruno A. Katlarz

Bruno A. Katlarz served in the 393rd Bombardment Squadron. 

Andrew H. MacMahon

Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.