National Museum of Nuclear Science & History
RoRon Fredlund was a finance sergeant with the 509th Composite Group on Tinian Island during World War II.
O. E. Brueggeman worked for the J.A. Jones Construction Company.
Millard Ross was a staff worker at Los Alamos during the Manhattan Project.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.
