The collection is composed of the correspondence files of the James Truslow Adams. The majority of the letters were written to Adams by various contemporary historians, educators, public figures, business associates, friends and family. The material ranges in date from 1918-1949. The letters are concerned with the following: Adams' literary activities and the publication of his writings; contemporary politics; personal and business affairs; requests and solicitations from individuals and groups for support, etc.; scholarly and academic activities. While very few original letters sent by Adams are present, there exist margin notes in his own hand on incoming letters indicating the nature of his reply. Of special note are six volumes of mounted letters and clippings relating to President Roosevelt's plan to reorganize the United States Supreme Court. Adams was an opponent of the plan.