The first two U.S. Navy ships named Idaho were named in honor of the 43rd State of the Union; the third Idaho retained the name she carried at the time of her acquisition.
(S.P. 545: tonnage 24 (gross register) ; length 60'0" (overall); beam 12'6" ; draft 2'10" (mean); speed 9.5 knots (maximum); complement 10; armament 1 1-pounder, 1 machine gun)
Idaho, a single-screw, wooden-hulled motor boat built in 1907 at Marblehead, Mass., by Stearns & McKay; was acquired from her owner, W. W. Vensel of Pittsburgh, Pa., under a free lease and delivered on 12 July 1917. Idaho, given the identification number S.P. 545, was commissioned at Cape May, N. J., on 12 July 1917, CQM William H. Naylor, USNRF, in command.
Idaho was assigned to the Fourth Naval District for patrol and general duties, serving on harbor entrance patrol and submarine net patrol in the Cape May and Philadelphia areas. She was out of commission during the winter of 1917-18, and was returned to her owner 30 November 1918.
Updated, Robert J. Cressman
26 May 2022