USS Louisville
From Memory Alpha, the free Star Trek reference
The USS Louisville was a 19th century ironclad employed by the Union Army during the American Civil War. The Louisville participated in several river campaigns during the war, including the Battle of Fort Hindman, where it assisted in the shelling of the Confederate Army's Fort Hindman.
A print depicting this ship participating in the battle was stored in the USS Enterprise's library computer in 2254, and was among the materials viewed by the Talosians when they scanned the Enterprise computer. (TOS: "The Cage")
