Mexican–American War William Walton Morris Jr. (August 31, 1801 – December 11, 1865) was an American soldier and a career officer in the United States Army.

Morris served as a brigade commander primarily in charge of the defense of Fort McHenry and Baltimore Harbor.

[4] He was appointed as a cadet in the United States Military Academy at West Point, New York, on March 17, 1815, at age fourteen.

[4] He fought in the Second Seminole War, including the Battle of Wahoo Swamp, receiving a brevet major appointment for gallant conduct.

Returning to the United States in 1848, Morris was promoted to major, 4th Artillery and served in various garrison and frontier positions.

[1] On April 30, 1862, President Abraham Lincoln nominated Morris for appointment to the grade of brevet brigadier general, Regular United States Army, for "meritorious services", to rank from June 9, 1862, and the United States Senate confirmed the appointment on June 9, 1862.

On April 16, 1866, President Andrew Johnson nominated Morris for posthumous appointment as a brevet major general, for "Faithful and meritorious Services during the Rebellion", in the Regular United States Army to rank from December 10, 1865, and the United States Senate confirmed the appointment on May 4, 1866.