There are several institutions holding primary and secondary documentary material on Woolson’s life and work. The Woolson House and Department of Archives and Special Collections at Rollins College in Winter Park, Florida, and the Western Reserve Historical Society in Cleveland, Ohio, are two important sites. The Claremont Historical Society in New Hampshire has part of Woolson’s library, as does Rollins College. Recently, some of Woolson’s book were found in the Biblioteca Nazionale Marciana in Venice, Italy.
Sharon Dean has collected Woolson’s letters in The Complete Letters of Constance Fenimore Woolson (University Press of Florida, 2012). A few more letters have been located since the publication of that invaluable work by Anne Boyd Rioux. For details see her review of Dean’s collection in The Henry James Review 35.2 (Spring 2014), available online in Project Muse.