National Museum of Nuclear Science & History
Robert Holmberg was born in Fort Dodge, Iowa, and began working on the Manhattan Project at the Chicago Met Lab and at Ames Laboratory in Iowa.
Lyman Brenneman was a member of the Special Engineer Detachment at Oak Ridge and was assigned to the K-25 Power Plant.
Robert Martens was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
