The Alice Stone Blackwell series consists of articles about Blackwell, correspondence, writings, and photographs of Blackwell and Catherine Breshkovsky (whose biography Blackwell wrote). Topics covered include the history of suffrage organizations, Blackwell's political views, the translation of Spanish poetry, Lucy Stone, and the Alice Stone Blackwell Fund. See also the Alice Stone Blackwell Letters which includes fundraising, membership, and political action letters sent to Blackwell from the American Civil Liberties Union, the Civil Liberties Committee of Massachusetts, and other civil liberties, labor, and civil rights-oriented organizations. As a whole, they provide a snapshot of the kinds of civil liberties issues that were important to Blackwell and others.

Howard Lane Blackwell earned three degrees from Harvard University: A.B. 1899, A.M. 1900, and Ph.D. (in physics) 1905. Before going into real estate, Blackwell was comptroller of Harvard (1906 to 1910), a lecturer in physics (1918), and organizer of the Memorial Hall Dining Association. This collection consists of letters sent to Blackwell by business acquaintances, friends, and family, including his son George. Of note are the letters concerning the mental health of Blackwell's cousin Brookes Robinson, including an exchange of letters between Blackwell and Brookes Robinson and letters from Brookes's aunt Mary Robinson, discussing the difficulties of caring for Brookes, and her feeling that he and his sister Antoinette should be institutionalized.

This collection includes fundraising, membership, and political action letters sent to Blackwell from the American Civil Liberties Union, the Civil Liberties Committee of Massachusetts, and other civil liberties, labor, and civil rights-oriented organizations. Letters include both personal solicitations as well as mass-produced mailings. As a whole, they provide a snapshot of the kinds of issues that were important to Blackwell and others concerned with safeguarding civil liberties in the years after the funding of the American Civil Liberties Union.

The Library of Congress holds a collection of Blackwell family papers that complements the material held by the Schlesinger Library.

A microfilm of these papers is available at Harvard's Lamont Library. See HOLLIS #006264241.