H. W. Dunham

E. S. Hoyle

E. S. Hoyle worked for the J.A. Jones Construction Company.

H. W. Paulson

Jay Hitchcock

Jay Hitchcock worked in the Shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Paul O. Langguth

Paul Langguth worked for the United States Engineer District Office.