The USS Henry R. Mallory (ID-1280) was a notable transport vessel built by Newport News Shipbuilding & Drydock Co. of Newport News, Virginia, with yard number 193, and delivered on October 21, 1916, to the Mallory Steamship Line. Originally serving as a passenger and freight carrier along the New Orleans–New York route, the ship was named after Henry R. Mallory, president of the Mallory Lines. Following the U.S. entry into World War I, the ship was requisitioned by the U.S. Army on May 24, 1917, with her passenger accommodations converted into troop berths, and additional facilities installed to handle large troop transports. She was part of the first three ships acquired for troop movement, and her refit included the installation of gun platforms before her voyage to France. As part of the American Expeditionary Forces convoy, she departed on June 14, 1917, and was involved in multiple transatlantic crossings, notably sailing from Newport News, Virginia, starting January 17, 1918, and from Hoboken, New Jersey, on several occasions. During her service, she transported a total of 9,756 troops to France and returned with over 14,500 troops, both healthy and wounded, until peace was declared in November 1918. In April 1918, she was transferred from Army to Navy control, commissioned as USS Henry R. Mallory, and continued to serve as a troop transport through the end of the war, making five more voyages to France. After the war, she helped repatriate American soldiers, bringing home 14,514 men before returning to her owners in August 1919. During World War II, the vessel was requisitioned by the War Shipping Administration in July 1942 and operated as a civilian-manned troopship by Agwilines Inc. She participated in various convoy operations across the Atlantic, including voyages to Belfast, Newfoundland, and Liverpool. Tragically, on February 7, 1943, while part of Convoy SC-118 near Iceland, she was torpedoed by the German U-boat U-402. The attack caused her to sink, resulting in the loss of 272 lives, including her master, crew members, armed guards, and passengers. Despite her wartime service, her sinking exemplifies the peril faced by Allied merchant ships during the Battle of the Atlantic, emphasizing her maritime significance as a World War I and World War II troop transport.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.