USS Hartford, a sloop-of-war steamer, was the first ship of the United States Navy named for Hartford, the capital of Connecticut. Hartford served in several prominent campaigns in the American Civil War as the flagship of David G. Farragut, most notably the Battle of Mobile Bay in 1864. She survived until 1956, when she sank awaiting restoration at Norfolk, Virginia.
USS Monongahela was a barkentine–rigged screw sloop-of-war that served in the Union Navy during the American Civil War. Her task was to participate in the Union blockade of the Confederate States of America. Post-war, she continued serving her country in various roles, such as that of a storeship and schoolship.
The first USS Undine was a "tinclad" steamer in the United States Navy in 1864, during the American Civil War. She was captured on 30 October and put in service with the Confederates, but was not renamed before being burned, 5 days later, to prevent re-capture.
USS Sciota was a Unadilla-class gunboat built on behalf of the United States Navy for service during the Civil War. She was outfitted as a gunboat, with both a 20-pounder rifle for horizontal firing, and two howitzers for shore bombardment, and assigned to the Union blockade of the waterways of the Confederate States of America.
USS Albatross was a screw steamer rigged as a three-masted schooner acquired by the Union Navy during the beginning of the American Civil War. She was outfitted as a gunboat with heavy guns and used in the Union blockade of the waterways of the Confederate States of America.
The second USS Memphis was a 7-gun screw steamer, built by William Denny and Brothers, Dumbarton, Scotland in 1861, which briefly served as a Confederate blockade runner before being captured and taken into the Union Navy during the American Civil War. She was destroyed by fire in 1883.
The second USS Oneida was a Mohican-class screw sloop-of-war in the United States Navy. During the Civil War, she destroyed the CSS Governor Moore and served in blockade operations. She was attached to the Asiatic Squadron from 1867–1870. She sank in 1870 outside Yokohama, Japan after collision with the British steamer Bombay. A court of inquiry, headed by the local British consul, found the officers of Oneida were responsible for the collision, with Bombay's captain being blamed for not staying at the scene to render assistance – a decision that caused some controversy. A less exhaustive U.S. naval court of inquiry laid the blame entirely on the Bombay's actions. Japanese fishing boats saved 61 sailors but 125 men lost their lives. The American government made no attempt to raise the wreck and sold it to a Japanese wrecking company. The company recovered many bones from the wreck and interred them at their own expense. The Japanese erected a memorial tablet on the grounds of Ikegami Temple in Tokyo and held a Buddhist ceremony in the sailors' memory in May 1889.
USS Narcissus – a screw steamer launched in July 1863 as Mary Cook at East Albany, N.Y. – was purchased by the Union Navy at New York City on 23 September 1863 from James D. Stevenson; and commissioned at New York Navy Yard on 2 February 1864, Acting Ensign William G. Jones in command.
USS John P. Jackson (1860) was a steamship acquired by the United States Navy during the beginning of the American Civil War. She was assigned to the Union blockade of the Confederate States of America. as well as the bombardment of Mississippi River ports.
USS Meteor was a gunboat acquired by the Union Navy during the American Civil War. She carried heavy artillery and became part of the sea blockade of waterways of the breakaway Confederate States of America.
USS Octorara was a steamer acquired by the Union Navy during the American Civil War. She was used by the Navy to patrol navigable waterways of the Confederacy to prevent the Confederates from trading with other countries.
USS Ida was a steamer acquired by the Union Navy during the American Civil War. She was used as a towboat and dispatch boat by the Navy, and she provided her services to ships in the blockade squadrons.
USS Eastport was a steamer captured by the Union Navy during the American Civil War. She was used by the Union Navy as a convoy and patrol vessel on Confederate waterways.
USS Tawah was a 108-ton steamer acquired by the Union Navy during the American Civil War.
USS Elk was a steamer, originally named Countess, which was acquired by the Union Navy during the American Civil War. She was used by the Union Navy as a convoy and patrol vessel on Confederate waterways.
USS Rose was a screw steamer acquired by the Union Navy during the American Civil War.
USS Antona was a steamer captured by the Union Navy during the American Civil War. She was used by the Union Navy as a dispatch boat and gunboat in support of the Union Navy blockade of the Confederate States of America.
USS Tritonia was a 202-ton steamer commissioned by the Union Navy during the American Civil War.
USS Rodolph was a steamer commissioned by the Union Navy during the American Civil War. She served the Union Navy during its struggle against the Confederate States of America, both as a tugboat and a minesweeper, as well as a gunboat when the occasion demanded. Just as the war was ending, Rodolph struck a mine and sank, with four of her crew killed and a number of others wounded.
United States