Correspondence, journals, notebooks, reports, list of officers, wills, photographs, portraits, and printed matter relating to Patterson's duties as fleet captain of the flagship U.S. Frigate Constitution and as commander of the Mediterranean Squadron. Includes material on piracy in the Mediterranean region and the squadron's diplomatic and strategic missions there. Also includes orders (1826 October 13) prescribing funeral honors for former presidents John Adams and Thomas Jefferson. Correspondents include William W. Bleecker, Landon N. Carter, William M. Crane, Robert E. Griffin, Charles H. Jackson, John H. Jarvis, Edward Livingston, George Minor, Charles Morris, Joseph J. Nicholson, John B. Nicolson, David Offley, Hiram Paulding, Matthew C. Perry, Richard S. Pinckney, David Porter, Joseph Pulis, George C. Read, John Rodgers, Samuel L. Southard, and Richard Thomas.