National Museum of Nuclear Science & History
Bretscher worked at Los Alamos during the Manhattan Project.
John Sommer worked for the Roane-Anderson Company.
Sid Williams worked for the H. K. Ferguson Company.
Helene Suydam and her husband, Jerry, moved into J. Robert Oppenheimer’s house on Bathtub Row in Los Alamos shortly after the Manhattan Project ended in 1947.