What is now the Schlesinger Library began in 1943 with a donation from Maud Wood Park of materials related to the women's suffrage movement in the United States - the Woman's Rights Collection. The topic of suffrage remains a core component in the Schlesinger Library's catalog, and many of the materials the Schlesinger holds on this topic have been digitized.
In the summer of 2020, supported by funding from the Andrew W. Mellon Foundation, the Schlesinger Library launched two new tools: the Long 19th Amendment Project Portal and the Suffrage School. The Women's Suffrage Guide, which highlights the Schlesinger Library's archival collections as well as periodicals, photographs, posters, and memorabilia, and the Radcliffe College Suffrage Guide, which contains specific suffrage and anti-suffrage material within Radcliffe College collections relating to activity at the college, activity in the greater Cambridge-Boston area, or activity of Radcliffe alumnae, will also be useful tools for researchers interested in this topic.
Further material on the topic can be found by searching HOLLIS, Harvard's online library catalog, for "suffrage," "anti-suffrage," and "first wave feminism."