National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Walter R. Julek was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. P. Baker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Lindgren worked in the 300 Area at Hanford during the Manhattan Project.
Martin Webb was an American military officer. In 1944, Webb was assigned to the Manhattan Engineer District as an intelligence officer.