USS Thetis (SP-391)

The second USS Thetis (SP-391) was a United States Navy patrol vessel in commission from 1917 to 1919.

Thetis as a private yacht sometime between 1901 and 1917.

A photograph of USS Thetis (SP-391) in port, taken by one of her quartermasters during World War I.
History
United States
Name:	USS Thetis
Namesake:	Previous name retained
Builder:	George Lawley & Son, Neponset, Massachusetts
Completed:	1901
Acquired:	23 June 1917
Commissioned:	9 July 1917
Stricken:	31 March 1919
Fate:	Sold 19 July 1920
Notes:	Operated as private yacht Thetis 1901-1917 and from 1920
General characteristics
Type:	Patrol vessel
Displacement:	97.6 tons
Length:	127 ft (39 m)
Beam:	16 ft 4 in (4.98 m)
Draft:	7 ft 6 in (2.29 m) aft
Propulsion:	Steam engine
Speed:	12 knots
Complement:	17
Armament:	2 × 3-pounder guns 2 × machine guns

Thetis was built as a private steam yacht of the same name in 1901 by George Lawley & Son at Neponset, Massachusetts. On 23 June 1917, the U.S. Navy purchased her from Charles H. Fuller of Pawtucket, Rhode Island, for use as a patrol vessel during World War I. She was commissioned as USS Thetis (SP-391) on 9 July 1917.

Assigned to the 2nd Naval District, Thetis served on the section patrol in southern New England. She patrolled the coast of the United States between Chatham, Massachusetts, and New London, Connecticut, for the remainder of World War I.

Thetis was decommissioned after the end of the war and stricken from the Navy List on 31 March 1919. She was sold to Mr. Herman Lee Meader of New York City on 19 July 1920.