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. Suydam came to know many of the scientists and workers who stayed in Los Alamos after the project ended, including director Norris Bradbury. She played an active role in the Los Alamos Historical Society, to preserve the Manhattan Project.