National Museum of Nuclear Science & History
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.
Wynona Naranjo was a staff worker at Los Alamos during the Manhattan Project.
Dr. Alexander Langsdorf (1912-1996) was an American physicist who worked under Enrico Fermi at the University of Chicago.
George Weisiger worked at Oak Ridge during the Manhattan Project, although it remains unknown what his specific duties were.
