Scope and arrangement
The Elsie Leslie papers are arranged in three series:
This series contains incoming letters to Elsie Leslie, mostly from friends on personal matters: invitations, travels, health, etc., though there is some discussion of possible roles and compliments on her performances. Includes a few letters to Leslie when she was a child actress. There is an extensive file of letters [1911-1942] from playwright Louis N. Parker to Leslie. Other correspondents include Poultney Bigelow, members of the Samuel Clemens family, Julie Harris, Helen Keller, Schuyler Mathews, Julia Marlowe Sothern, and Alexander Woollcott. There is also a small amount of third party correspondence, primarily letters to her husband, Edwin Milliken.
One bound volume printed in gold across the cover contains correspondence, photographs, clippings, autographs, and cards as well as notes added by the donor, Leslie's editor.
Consists of six portraits  of Elsie Leslie as a child of eight that were used for publicity, ten portraits as Lydia Languish in THE RIVALS , and twenty- one taken in 1901 or after including ten portraits as a young woman, some in unidentified roles, one from THE CHRISTIAN , five as Katharine in THE TAMING OF THE SHREW , two from ALIAS JIMMY VALENTINE , two from THE CRICKET ON THE HEARTH, and one with George Arliss from DISRAELI . Two of the portraits of Leslie as Lydia Languish are in frames she created herself: one is embroidered with forget-me-nots and the other is painted with watercolor over cut-out figures.