National Museum of Nuclear Science & History
Charles Mayette worked for Hanley & Company.
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Joseph Getzholtz worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
G. O. Robinson, Jr. worked for the United States Engineer District Office.
