The papers consist of correspondence, writings, student and teaching files, and miscellanea documenting the personal life and professional career of Albert G. Keller, a sociologist, author, and student and colleague of William Graham Sumner. Keller frequently corresponded with individuals on the subject of Sumner, and Yale University figures such as Arthur T. Hadley, James Rowland Angell, and Charles Seymour often felt Keller's displeasure over the University's treatment of the Sumner legacy. He also corresponded with colleagues and former students, Sumner biographers, and family members. Files relating to the William Graham Sumner Club, which he helped found, are also included. Drafts of several published and unpublished writings and many student gradebooks detail his literary and teaching activities.