Typescript notes about data in various libraries and repositories relating to the history of the National Library of Medicine, including its predecessors. Much of the material pertains to the period when John Shaw Billings was librarian.

Primarily consists of Billings' correspondence during his time as head of the Library of the Surgeon General (1868-1895). Also includes some biographical information, a collection of Billings' reprints, speech texts, scrapbooks, and clippings.