Included in the Miscellaneous series are school reports for Sexton and her children, the wills of both of Sexton’s parents as well as her own, student poetry and works, correspondence with students, course critiques, and other materials having to do with Sexton’s teaching experience. Correspondence in this series (other than fan mail and student mail) is included in the Index of Correspondents.

The large collection of fan mail written to Sexton between 1960 and 1974 demonstrates the effect her poetry had on people. She received letters from hopeful young writers who included samples of their work, notes of thanks from people whose hearts her poetry had touched, and requests for help and comfort from other mentally ill people. Some of Sexton's answers to these letters are found under "Letters to correspondents" in this series.

Also of interest are the poems sent by fellow poets to Sexton for comment. Louise Conant, Erica Jong, and Barbara Kevles all sent poems, and Phil Legler's poems include notes to Sexton, asking for her response to specific lines and word choices. An Index of Works by Other Authors is located at the end of this inventory.

Of note in this series are three scrapbooks created by Sexton in the 1940s and early 1950s. They include memorabilia, photographs and correspondence documenting her life from her teens to her early twentys, and her marriage. Two of the three scrapbooks are restricted for preservation purposes due to their physical condition. Digital surrogates are available in the Ransom Center Reading and Viewing Room.

The materials relating to Sexton's teaching activities focus on letters to and from students at Boston University, Oberlin, and McLean Hospital, samples of works by students from all of these institutions plus Wayland High School, and class projects and course critiques.