This collection contains correspondence to and from Mary Horton Wadsworth, as well as Lake Forest University Commencement programs from 1889. There are also various programs from Presbyterian churches in Massachusetts and Washington D.C. Additionally the collection contains a book of Lake Forest University class meeting minutes and two poetry books, "Drifting Leaves" and "At Easter's Dawn."

This collection includes copies of published poems by Sloan, as well as unpublished drafts of her poetry. Also contained in the collection are "Pen-mark" newsletters from the Palo Alto branch of the National League of American PEN Women. In addition, there is a small book containing quotes that have been handwritten.