Abstract The collection consists of Marshak's professional and personal papers, detailing his career as university professor in physics at the University of Rochester and Virginia Tech, member and leader in several scientific institutions, and president of the City College of New York. Materials include Marshak's files on the Shelter Island Conferences (1947-1949) and his administrative and correspondence files on the Rochester Conferences on High-Energy Physics (1950-1957), which he founded. The...