| Preview | Description
  | Artist | Notes |
|---|---|---|---|
 | Uhlan (Lancer) by Frederic Remington c.1892-1893 Private Collection Unknown, USA | Remington, Frederic |  Uhlans were Polish light cavalry armed with lances, sabres and pistols. The title was later used by lancer regiments in the Russian, Prussian, and Austrian armies. |
 | Unconscious Of Danger by Seymour Joseph Guy 1865 Private Collection Unknown, USA | Guy, Seymour Joseph | |
 | Under the Willows by John Singer Sargent 1887 Private Collection Unknown, USA | Sargent, John Singer | |
 | Une Parisienne by George Henry Yewell Oil on board Private Collection Unknown, USA | Yewell, George Henry | |
 | Unidentified by John Singer Sargent 1917 Private Collection Unknown, USA | Sargent, John Singer | |
 | Unidentified Woman In A Blue Gown by Nelson Cook 1857 Private Collection Unknown, USA | Cook, Nelson | |
 | United States And Macedonian by Benjamin Tanner 1814 Private Collection Unknown, USA | Tanner, Benjamin | |
 | Unknown by Thaddeus Defrees 1886 Private Collection Unknown, USA | Defrees, Thaddeus | |
 | Unknown by John Henry Dolph 1866 Private Collection Unknown, USA | Dolph, John Henry | |
 | Unknown by Lemuel D. Eldred Oil Private Collection Unknown, USA | Eldred, Lemuel D. |
- Private Collection
