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.
Isabel Weber worked for the Roane-Anderson Company.
John Marcy worked for the Kellex Corporation at the K-25 Plant.
Grace R. Harvey was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
