Collection contains loose items that were removed from the inside of books and manuscript collections from the Huntington Free Library. Items include letters regarding the books, book dealer listings, assorted cards and notes, additional encyclopedic information, and other ephemera. Items organized by call number. Books and manuscripts in the Native American Collection that have a folder in this collection are noted as having additional material in their record. Also a chronology of the Heye Foundation including Trustees, Employees, and Collectors by David R. Wilcox. Also additional provenance information on collections from the Huntington Free Library and details on collections that have components now part of the National Museum of the American Indian collections.