National Museum of Nuclear Science & History
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
Jean Dow Bacher was born in 1907, and grew up in Ann Arbor, Michigan. She married fellow Ann Arbor native and leading Manhattan Project scientist Robert Bacher in 1930.
Leonard Czarniecki served as procurement planning and control officer with 9812th Technical Services Unit (Special Engineer Detachment) at Oak Ridge, TN, with the Y-12 Plant.
William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
