Skip to main content
Related Content
Document Type
  • Ship History
Wars & Conflicts
  • World War I 1917-1918
File Formats
Location of Archival Materials

Idaho III (S.P. 545)


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

Published: Thu May 26 15:14:19 EDT 2022