National Museum of Nuclear Science & History
Heatherington worked for Stone and Webster Engineering Corporation.
Lawrence Sperry worked for the United States Engineer District Office.
Clyde Fiddler was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Groht worked for Stone and Webster Engineering Corporation.
John Kenyon Kinnear, Sr. was raised in Brooklyn, NY. He joined the Army and because he was a tool and die maker, he was assigned to the Manhattan Project.
