Correspondence, telegrams, newspaper clippings, printed matter, and other papers relating chiefly to Gresham's service as U.S. postmaster general in the administration of Chester Alan Arthur, U.S. secretary of state in the administration of Grover Cleveland, and as a judge. Includes Gresham's Civil War letters to his wife, Matilda Gresham, written from camps near Corinth and Vicksburg, Miss.; Kenesaw Mountain, Ga.; Memphis and Shiloh, Tenn.; and Paducah, Ky. Subjects include Indiana state and national politics, the Louisiana lottery, judicial matters, the presidential elections of 1884 and 1888, the annexation of Hawaiian, and pelagic sealing in the Bering Sea.

Correspondents include Thomas F. Bayard, Erastus Brainerd, Benjamin Harris Brewster, Benjamin Helm Bristow, Martin L. Bundy, Noble Chase Butler, Grover Cleveland, David Davis, Charles Denby, Thomas Drummond, Charles E. Dyer, Henry Wood Elliott, John Watson Foster, Robert Sanford Foster, John Marshall Harlan, R.M. Kelly, Elijah Bishop Martindale, Joseph Medill, John Tyler Morgan, John Overmyer, Julian Pauncefote, James M. Scovil, Thomas C. Slaughter, David W. Voyles, Henry Watterson, Albert S. Willis, J.H. Woodard, and Gresham's son, Otto Gresham.