The Correspondence Files collection of Laurance S. Rockefeller's papers, is comprised of alphabetical correspondence files for 1962-1991 from the LSR papers in the Rockefeller Family general files (record groups 3, 33, 37, and 39; and of LSR's files for individuals (Friends and Associates), pulled from these same general files. Sets of mail logs and chronological files, maintained by LSR's office from the early 1960s/early 1970s to around 1986, and two albums of "special letters" complete the collection.