The collection consists of original manuscripts, drawings, correspondence, miscellaneous materials, photographs and portraits, articles, clippings, and other printed material by and related to John Butler Yeats. The bulk of the collection, however, is composed of typed transcripts of this correspondence as well as copies of other correspondence (primarily letters by and to John Quinn from the John Quinn Memorial Collection in the New York Public Library), and other research material.

The manuscripts include an autograph draft of "The Last of Her Sex," typed and corrected drafts of "Extravaganza Written in Anticipation," "The Haunted House," "Jack B. Yeats," "A Painter on Painting" (which appeared in The Seven Arts, April 1917), and an untitled manuscript.

The drawings consist of two pencil self-portraits, several of women, and one of an unidentified group.

The original correspondence (with many of the original envelopes) from 1908 to 1922 documents Yeats's years in New York. The majority of the correspondence is by Yeats to several of his American friends, including Martha Fletcher Bellinger, Mary Tower Lapsley Caughey, Eulabee Dix (Becker), Dolly Sloan, John Sloan, Ann Squire, and others. Many of these letters are heavily illustrated with humorous sketches and drawings. Some of the envelopes addressed to Mary Tower Lapsley Caughey contain notes by her. There are also letters to Yeats by others, including his daughters Elizabeth Corbet (Lollie) Yeats and Susan Mary (Lily) Yeats, and his son Jack (John) Butler Yeats. Furthermore, there is a small selection of correspondence between various persons about Yeats.

The photographs show the sitting room in Yeats's house in Dundrum, Ireland, and Anne Yeats (daughter of W. B. (William Butler) Yeats) as a young child with her nurse; and there are photographic reproductions of Yeats's portraits of Mary Tower Lapsley Caughey, Mary-Lapsley Caughey Guest, and Padraic Colum, as well as of some drawings.

The miscellaneous materials consist of envelopes addressed by Yeats to Charlotte (?) Jordan and W. B. (William Butler) Yeats, a list of Yeats's articles by Elizabeth Corbet (Lollie) Yeats, a drawing with notes by Mary Tower Lapsley Caughey, a typed and corrected draft of "Memories of J. B. Yeats" by Mary-Lapsley Caughey Guest (?), a poem, "Theocritus," by Mary-Lapsley Caughey Guest, and a typed transcript of "An Incident of the British Occupation of Egypt in 1882" by Captain George Freeman (Fitzgerald) (?).

The research material was compiled by William Murphy, Glenn O'Malley, and Donald Torchiana-probably used by Murphy in his research for his biography Prodigal Father: The Life of John Butler Yeats, 1839-1922 (1978), and intended for use by O'Malley and Torchiana in a publication of the correspondence of Yeats to his American friends. Included are typed transcripts and photocopies of the original correspondence by Yeats in the collection, as well as of his correspondence to Van Wyck Brooks, Robert Henri, and others. Also present are typed transcripts, photocopies, and microfilm of the correspondence of John Quinn with John Butler Yeats, Jack (John) Butler Yeats, and others from the John Quinn Memorial Collection in the New York Public Library. In addition, there are notes about the correspondence and other related material.

Articles by Yeats, written while in New York, include essays, poetry, and letters to the editor. The clippings document Yeats's social circle in New York, publications of his essays and letters, interviews, various posthumous remembrances, and other related topics. The other printed material includes miscellaneous publications about Yeats and Jack (John) Butler Yeats.