USS Louisiana explained

Five ships of the United States Navy have borne the name USS Louisiana in honor of the 18th state.

• was a sloop that served in the War of 1812
• was a propeller-driven steamer that served in the American Civil War
• was a commissioned 2 June 1906 and decommissioned 20 October 1920
• was a cancelled before her keel was laid down
• is an currently in active service
• was commissioned by the Confederate States of America during the American Civil War
• was a wood hull topsail schooner that served in the United States Revenue Cutter Service from 1819 to 1824