National Museum of Nuclear Science & History
A. L. Longshore worked for the United States Engineer District Office.
Edward Wilder, Jr. worked for the United States Engineer District Office.
R. J. Dunbar worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
