Index: Consolidated, U
- “U” (newspaper pseudonym)
- Uffelman, Jean Henry
- Uhl, Jean Henri David (Prussian lawyer)
- Uhl, Mrs. (wife of Jean)
- Ukraine
- Ulster County, N.Y.
- Ulysses
- Ulysses (Mass. privateer)
- Uncas River
- Undertaking, commonplaced
- Underwood v. Hewson
- Underwood, Joseph R. (U.S. Repr., Ky.)
- Underwood, Moses, deposition, No. 29
- Underwood, Nathan (H.C. 1788)
- Underwood, Nell
- Unicorn (British frigate)
- Uniform Commercial Code
- Uniform Negotiable Instruments Law
- Union (Amer. ship)
- Union (British merchant ship)
- Union (British privateer)
- Union (Dutch brig)
- Union (brigantine), seized in No. 50
- Union Bank of Georgetown
- Union party (pro-Van Buren)
- Unitarianism
- United Colonies
- United Provinces
- United States
- United States (frigate)
- United States (ship)
- United States Army
- United States Bank
- United States Branch Bank, Boston
- United States Government
- United States Military Academy, West Point, N.Y.
- United States Navy
- United States Patent Office
- United States Post Office, corruption in
- United States Telegraph (Washington)
- United States v. Peters
- United States v. Standard Oil Co. et al.
- Unity (American brig), captured
- Universal Asylum and Columbian Magazine
- Universalism
- Universalists
- University of Leyden
- University of Pennsylvania
- Unknown
- Updike, Capt.
- Upham, Ann Susan Holmes (wife of Charles Wentworth)
- Upham, Charles Wentworth (Salem minister)
- Upham, George Baxter (H.C. 1789)
- Upham, Jabez Jr. (?)
- Upham, Dr. Jabez Sr.(?)
- Upham, Joshua, identified
- Upper Silesia, Germany
- Uranus
- Uriah (Biblical character)
- Ursuline Community, Charlestown, Mass.
- Uruguay
- U.S. Government
- Useful and Ornamental Planting
- Usem, officer on La Sensible
- Ushant (Ile d'Ouessant), France
- Ushant, Battle off (1778)
- Usher, Mr., in No. 64
- Usher, Mr., witness, No. 59
- Utica, N.Y.
- Utica, North Africa
- Utilitarians
- Utrecht (province of the Netherlands)
- Utrecht, Netherlands (city)
- Utrecht, Treaty of, 1713
- Utrecht, Union of (1579)
- Utrecht, University of
- Uxbridge, England
- Uxbridge, Mass.