Series I. Papers, 1929-1935
This series contains research material, including notes, bibliographical lists, and descriptions concerning children's magazines as well as letters to Hazeltine. The letters are from librarians answering her inquiries about children's periodical holdings. In addition to the lists of magazine titles, there are handwritten sheets with descriptive information relating to individual magazines. It appears that most of the material is related to a proposed book project on the history of children's magazines that would have also included information regarding the holdings of individual libraries.