The first Thornton was laid down on 16 March 1899 at Richmond, Va., by the William R. Trigg Co.; launched on 15 May 1900; sponsored by Miss Mary Thornton Davis; and commissioned on 9 June 1902.
USS Inca (SP-1212) was a 62-foot-long motorboat leased by the U.S. Navy during World War I. She was outfitted as a patrol craft, but was additionally assigned other duties, such as rescue craft, seaplane tender, and dispatch boat. She served in the Boston, Massachusetts, and Hampton Roads, Virginia, waterways until war’s end when she was returned to her owner.
USS Lyndonia (SP-734), later known as USS Vega (SP-734) was a yacht acquired by the U.S. Navy during World War I. She was assigned as an armed patrol craft, but, at times, performed other duties along the U.S. East Coast, such as dispatch boat and training ship for the U.S. Naval Academy. Post-war, she was disposed of through sale to the public.
USS Margaret (SP-328) was a menhaden fishing trawler acquired by the U.S. Navy during World War I. She was configured by the Navy as a Section mine sweeper. Post-war she was sold resuming commercial fishing as Margaret. With World War II the vessel was acquired by the U.S. Coast Guard serving from December 1942 to June 1943 as an emergency manned vessel. Margaret resumed menhaden fishing and was shown as active in the U.S. register as late as 1968.
USS Peter C. Struven (SP-332) was a 152-foot (46 m) patrol boat in the United States Navy, placed in service 9 August 1917. She was a steel-hulled steamboat and had been originally used as a fishing boat.
USS W. L. Messick (SP-322) was a minesweeper that served in the United States Navy from 1917 to 1919.
The first USS Courtney (SP-375) was a patrol boat and minesweeper in commission in the United States Navy from 1917–1919.
USS George P. Squires (SP-303) was United States Navy patrol vessel and minesweeper in commission from 1917 to 1918.
The second USS Ripple (ID-2439) was a United States Navy trawler which served as a minesweeper and was in commission from 1918 to 1919.
USS Kenneth L. McNeal (SP-333) was a minesweeper that served in the United States Navy from 1917 to 1919.
USS City of Lewes (SP-383), later USS Lewes (SP-383), was a minesweeper and patrol vessel that served in the United States Navy from 1917 to 1919.
USS Helen Euphane (SP-403) was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1919.
The fourth USS Seneca (SP-1240) was a United States Navy barge in commission from 1917 to 1919.
USS Knickerbocker (SP-479), was a United States Navy tug, minesweeper, and dispatch ship in commission from 1917 to 1919.
The first USS Ardent (SP-680) was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1921. Acquired upon the entry of the United States into World War I, the ship served in New England during the war, and was sold back into private ownership in 1921.
USS Breakwater (SP-681) was a United States Navy patrol vessel, minesweeper, and tug in commission from 1917 to 1920.
USS Eugene F. Price (SP-839) was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1919.
USS McKeever Brothers (SP-683), sometimes written as USS McKeever Bros., was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1919.
USS Edward J. McKeever Jr. (SP-684) was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1919.
USS Amagansett (SP-693) was a United States Navy patrol vessel and minesweeper in commission from 1917 to 1920.
United States