National Museum of Nuclear Science & History
Barksdale worked for Stone and Webster Engineering Corporation.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R.J. Stepheson was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Coullard worked in the United States Engineer District Office.
Attended Pennsylvania State University.