National Museum of Nuclear Science & History
Paul Baranowsky served in the Army group at the Metallurgical Laboratory in Chicago during the Manhattan Project.
George C. Hollowwa was a member of the Army Air Corps and a weapons expert. During and after World War II, he was involved in the assembly and testing of atomic weapons.
Irvin F. Poehls served as a technical sergeant in the 390th Air Service Group.
Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
