P. J. Crowder

Seymour Miller

Seymour Miller worked for the Roane-Anderson Company.

Roger Hamm

Albert V. R. Wulff, Jr.

Albert Wulff, Jr. worked for the United States Engineer District Office.

Harvey B. Lemon

Harvey B. Lemon (1885-1965) was a consultant to the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.