Built: Richardson Boat, North Tonawanda, NY
Machinery: Gasoline engine
Top Speed: 8 knots
Beam: 11' 6"
Acquired : 17 June 1918
Sentinel was assigned to the St. Mary's River Patrol, Sault Ste. Marie, MI and renamed AB-13 on 6 November 1923. The cutter was last in the Coast Guard register in 1939.
Donald Canney. U.S. Coast Guard and Revenue Cutters, 1790-1935. Annapolis: Naval Institute Press, 1995.
U.S. Coast Guard. Record of Movements: Vessels of the United States Coast Guard: 1790 - December 31, 1933. Washington, DC: U.S. Government Printing Office, 1934; 1989 (reprint).