The first Long Island retained her former name; the second was named for the body of water between the southern shore of Connecticut and the northern coast of Long Island, N.Y.
(SP‑572: t. 167; l. 164'4"; b. 24'1"; dr. 6'9"; s. 11'5 k.; cpl. 25; a. 1 3‑pdr.)
Long Island, a steam trawler, was built in 1912 by Cobb & Butler, Rockland, Maine; purchased by the Navy 18 April 1917 from her owner, George B. Morrill, Portland, Maine; taken over 1 May 1917; enrolled in the Naval Coast Defense Reserve 2 May 1917; and commissioned 8 May 1917 at Boston, Ens. Stephen Black, USNRF, in command.
Assigned to the 1st Naval District, Long Island throughout the war served out of Boston as harbor patrol ship, minesweeper, and icebreaker. From 30 March until 18 April 1918 she escorted a submarine chaser between Boston and Bermuda. She then sailed to New London, Conn., and Newport, R.I., before returning to Boston 30 April.
Long Island departed Boston 30 January 1919 for Charleston, S.C., where she arrived 5 February. Assigned to the 6th Naval District, she served as a temporary lightship off Charleston until 25 May. Detached from the 6th Naval District 24 June, during the next 2 months she operated along the Atlantic coast from Hampton Roads to Boston. She decommissioned 13 September 1919 and was sold I December 1919 to Douglas Co., Inc., Reedville, Va.