National Museum of Nuclear Science & History
Clarence Johnson (1912-2012) was a Canadian-born chemical engineer. He was born in Alberta, Canada on November 24, 1912 to Swedish migrant parents.
Charles W. Hagen was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jean Ashin was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Winona Schiepel was as a civilian contractor for various projects in the K-25 plant at Oak Ridge, Tennessee.
