Sponsored by National Academy of Sciences, located in Long Island.
This is where Isidor Rabi exposed experiments carried out on the anomalous magnetic dipole moment and Willis Lamb presented his work on the Lamb shift.
It was a very private and intimate conference, that gathered the best physicists of the area, one is reminded of the style of the Solvay Conference.
Followup to the Shelter Island Conference, this is where Julian Schwinger and Richard Feynman exposed their theories to explain the experiments of the previous conference.
Julian made a formal presentation that took until the afternoon and bored everyone to death, though the mathematics avoided much questioning.
Feynman then presented his revolutionary approach, which he was unable to prove basic properties of, but which gave correct results, and people were not very happy.

Articles by others on the same topic (1)

The Shelter Island Conference, held in 1956, was a significant meeting in the history of the field of nuclear physics and related sciences. Organized by notable scientists, it took place on Shelter Island, New York, and it aimed to discuss scientific and technical aspects of nuclear proliferation and the peaceful uses of atomic energy following World War II. One of the key outcomes of the conference was the establishment of themes around the global impact of nuclear technology, including safety, security, and international cooperation.