National Museum of Nuclear Science & History
Irvin Mastin worked for the J.A. Jones Construction Company.
Irl Schoonover was a staff worker at Los Alamos during the Manhattan Project.
Tranquilino Armigo was a staff member at Los Alamos during the Manhattan Project.
Juan Romero was a staff worker at Los Alamos during the Manhattan Project.
Francis O’Sullivan worked for the United States Engineer District Office.
