(SP-301: t. 8; l. 50'; b. 9'6"; dr. 4'; s. 8 k.; cpl. 7; a. 1 1-pdr., 1 mg.)
Sans Souci H, a wooden boat built during 1907 by Frank Tregoning's yard at Seattle, Wash., was enrolled in the Naval Coast Defense Reserve on 15 June 1917 following United States entry into World War I; delivered to the Navy on 9 July 1917 by her owner, D. G. Schmitz of Seattle; and commissioned on 1 August 1917, Chief Boatswain's Mate R. W. Capps, USNRF, in command.
Assigned to local duty within the 13th Naval District, Sans Souci II operated on patrol duty from Seattle until September 1917. She also served, briefly, as a tender to Philadelphia (Cruiser No. 4), the receiving ship at Puget Sound Navy Yard, Bremerton, Wash., during late 1917. Sans Souci II resumed patrol duty in Puget Sound, frequently operating with, or alternating with, SC-300, until 23 December 1918. She then remained inactive until decommissioned on 7 February 1919 and was struck from the Navy list the same day. Ordered returned to her owner on 26 March 1919, Sans Souci II remained on yacht registers into the early 1930's.