National Museum of Nuclear Science & History
Ellis Ryan was a staff worker at Los Alamos during the Manhattan Project.
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.
N.F. Bowman was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
M. A. Ruth worked for the United States Engineer District Office.
