Special Collections at Firestone Library holds both items that document Miriam Holden’s life (her personal letters, papers, etc) and material collected by her.

The Miriam Y. Holden Collection, 1676-1993 (mostly 1930-1969) (C0071) “contains personal papers of Holden, including lectures, speeches, articles, and correspondence, reflecting the views of American feminists during the post-19th Amendment, pre-Feminine Mystique era, especially the early efforts to pass an equal rights amendment. Also included alongside contemporary feminist views is a bulk of materials related to the role women have played in the long history, from ancient Rome to the first women lawyers to depictions of women in mythical stories, reflecting Holden's belief that something needed to be done about the absence of women in the world's history.”