In 1981 Senator Stevenson’s records filling 961 file drawers were transferred to the Abraham Lincoln Presidential Library (formerly the Illinois Historical Library) in Springfield where they were organized and catalogued becoming the state’s largest archive. Additional transfers have been made since then. In 2015/16 a large collection of political memorabilia collected over five generations was given to the Abraham Lincoln Presidential Library and Museum for preservation and public display.
Governor Stevenson’s records are maintained by the Seeley Mudd Manuscript Library at Princeton, University, except for documents relating to his years as Governor of Illinois which are maintained at the Illinois Historical Library.
Other family records, including records of Vice President Adlai Stevenson and Jesse Fell (Abraham Lincoln’s patron) are maintained at the Milner Library, Illinois State University, Normal, Illinois. (The University was founded by Fell.)