USS Mercy (ID-1305/AH-4) was a hospital ship in the United States Navy during World War I. She was the first U.S. Navy ship of that name. The ship was previously known as SS Saratoga, a steamer for the Ward Line on the New York to Havana route, and considered the fastest steamship in coastal trade. Before being purchased by the Navy, the ship was briefly employed as United States Army transport ship USAT Saratoga, a career that ended after a collision off Staten Island, New York.
USS Comfort (AH-3) was a hospital ship for the United States Navy in World War I. She was the sister ship of USS Mercy (AH-4) but the two ships were not of a ship class. Comfort was known as SS Havana in passenger service for the Ward Line, and as USAT Havana in United States Army service before her Navy service. Her name was restored to Havana in 1927, and she was renamed SS Yucatán in 1935, and SS Agwileon in 1941. In World War II, she was known as USAT Agwileon and USAHS Shamrock in service for the United States Army.
USS Orizaba (ID-1536/AP-24) was a transport ship for the United States Navy in both World War I and World War II. She was the sister ship of Siboney but the two were not part of a ship class. In her varied career, she was also known as USAT Orizaba in service for the United States Army, and as SS Orizaba in interwar civilian service for the Ward Line, and as Duque de Caxias (U-11) as an auxiliary in the Brazilian Navy after World War II.
SS Kronprinzessin Cecilie was an ocean liner built in Stettin, Germany in 1906 for North German Lloyd that had the largest steam reciprocating machinery ever fitted in a ship. The last of four ships of the Kaiser class, she was also the last German ship to have been built with four funnels. She was engaged in transatlantic service between her home port of Bremen and New York until the outbreak of World War I.
USS Bridgeport (AD-10/ID-3009) was a destroyer tender in the United States Navy during World War I and the years after. She was a twin-screw, steel-hulled passenger and cargo steamship built in 1901 at Vegesack, Germany as SS Breslau of the North German Lloyd line. Breslau was one of the seven ships of the Köln class of ships built for the Bremen to Baltimore and Galveston route.
USS America (ID-3006) was a troop transport for the United States Navy in World War I. She was launched in 1905 as Amerika by Harland & Wolff in Belfast for the Hamburg America Line of Germany. As a passenger liner, she sailed primarily between Hamburg and New York. On 14 April 1912, Amerika transmitted a wireless message about icebergs near the same area where RMS Titanic struck one and sank less than three hours later. At the outset of the war, Amerika was docked at Boston; rather than risk seizure by the British Royal Navy, she remained in port for the next three years.
USS Pequot (ID-2998) was a cargo steamship that was built in 1910 for DDG Hansa of Germany as Ockenfels. She was the second of three DDG Hansa ships to be named after Ockenfels in the Rhineland-Palatinate.
USS Princess Matoika (ID-2290) was a transport ship for the United States Navy during World War I. Before the war, she was a Barbarossa-class ocean liner that sailed as SS Kiautschou for the Hamburg America Line and as SS Princess Alice for North German Lloyd. After the war she served as the United States Army transport ship USAT Princess Matoika. In post-war civilian service she was SS Princess Matoika until 1922, SS President Arthur until 1927, and SS City of Honolulu until she was scrapped in 1933.
USS Lenape (ID-2700) was a troop transport for the United States Navy in 1918, during World War I. She was launched in 1912 as SS Lenape, a passenger steamer for the Clyde Line. After the entry of the United States into World War I in 1917, she was chartered by the United States Army as transport USAT Lenape. After her Navy service ended in October 1918, she was returned to the Army.
SS Finland was an American-flagged ocean liner built in 1902 for the Red Star Line. During World War I she served as a transport for the United States Navy named USS Finland (ID-4543). Before her Navy service in 1917, she was also USAT Finland for the United States Army.
USS Covington (ID-1409) was a German transatlantic ocean liner that was launched in 1908 for the Hamburg America Line (HAPAG) as Cincinnati. In 1917 the United States seized her, had her converted into a troop ship and renamed her Covington. In 1918 SM U-86 torpedoed her, killing six of her complement. Three tugs towed her about 1/3 the way to Brest, but she sank the afternoon of 2 July 1918.
USS Martha Washington (ID‑3019) was a transport for the United States Navy during World War I named for Martha Washington, the first First Lady of the United States. She was originally ocean liner SS Martha Washington for the Austro-American Line before the war. Before and after her Navy service she was the United States Army transport USAT Martha Washington. The liner was sold to the Italian Cosulich Line in 1922. In 1932, when Cosulich was absorbed into Italia Flotte Riunite, the ship was renamed SS Tel Aviv. The ship was scrapped in 1934.
USS Tenadores was a transport ship for the United States Navy during World War I. Before the war she was known as SS Tenadores in the service of the United Fruit Company. Before her Navy service, she served as a United States Army transport under the name USAT Tenadores.
SS Dakotan was a cargo ship built in 1912 for the American-Hawaiian Steamship Company that served as a transport ship in the United States Army Transport Service in World War I, and then was transferred to the Soviet Union under Lend-Lease in World War II before being finally scrapped in 1969. During World War I, she was taken over by the United States Army as USAT Dakotan. Near the end of that war she was transferred to the United States Navy and commissioned as USS Dakotan (ID-3882). During World War II, the ship was transferred to the Soviet Union and renamed SS Zyrianin.
Empire Bittern was a steamship, built as a livestock-carrying cargo ship in 1902 at Belfast, Ireland as Iowa for the White Diamond Steamship Company Ltd of Liverpool. The ship was sold to the Hamburg America Line and renamed Bohemia in 1913.
USS Henry R. Mallory (ID-1280) was a transport for the United States Navy during World War I. She was also sometimes referred to as USS H. R. Mallory or as USS Mallory. Before her Navy service she was USAT Henry R. Mallory as a United States Army transport ship. From her 1916 launch, and after her World War I military service, she was known as SS Henry R. Mallory for the Mallory Lines. Pressed into service as a troopship in World War II by the War Shipping Administration, she was torpedoed by the German submarine U-402 in the North Atlantic Ocean and sank with the loss of 272 men—over half of those on board.
SS El Occidente was a cargo ship for the Morgan Line, a subsidiary of the Southern Pacific Company. During World War I, she was known as USAT El Occidente in service with the United States Army and as USS El Occidente (ID-3307) in service with the United States Navy. At the end of war, she reverted to her original name of SS El Occidente.
SS Montanan was a cargo ship built in 1912 for the American-Hawaiian Steamship Company. During World War I service for the United States Army Transport Service, she was known as USAT Montanan. Montanan was built by the Maryland Steel Company as one of eight sister ships for the American-Hawaiian Steamship Company, and was employed in inter-coastal service via the Isthmus of Tehuantepec and the Panama Canal after it opened.
SS Bulgaria was a passenger-cargo steamship built in 1898 for the Hamburg American Line ("Hapag"). During World War I, she operated as a United States Army animal and cargo ship under the names USAT Hercules and USAT Philippines, and after the war was converted into the troop transport USS Philippines (ID-1677).
SS Willehad was a passenger and cargo steamship that was built in Germany in 1894 for Norddeutscher Lloyd (NDL). For her first few years she took emigrants from Bremen to the United States. In 1900 she made one round trip between Bremen and Australia via the Suez Canal. Between 1901 and 1903 her route was between Bremen and South America. For a few months in 1904 she sailed between Stettin in Germany and New York. From the end of 1904 to the beginning of 1907 she was a mail ship between Japan and Australia. From 1911 until 1914 she ran transatlantic services between Hamburg and the United States, and also between Hamburg and Canada.
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