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Section Patrol Craft Photo Archive

USC&GS Ranger

Call sign (1924):
Nan - Unit - Dog - George

ex-USS SP-237

SP-237 served both the U. S. Navy and the Coast and Geodetic Survey.

Patrol Yacht:

  • Built in 1910 as the yacht Thomas Slocum by Robert Jacob, City Island, NY for Thomas W. Slocum of New York City
  • Renamed Ranger
  • Acquired by the Navy 22 June 1917
  • Commissioned USS SP-237, 9 October 1917
  • Decommissioned 28 April 1919, transferred to the Coast and Geodetic Survey Office and commissioned USC&GS Ranger
  • Returned to Navy control 26 November 1930
  • Struck from the Navy list 4 September 1931
  • Sold 21 December 1931
  • Fate unknown.


  • Displacement 149 t.
  • Length 133' 6"
  • Beam 22'
  • Draft 7'
  • Speed 13 kts.
  • Complement 45
  • Armament: Four 6-pounders
  • Propulsion: Steam.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Yacht Ranger
    Ranger 95k Fine screen halftone reproduction of a photograph taken circa 1910-1916
    U.S. Navy photo NH 100222
    Naval Historical Center
    Ranger 122k During the week of naval maneuvers in the New York area in September 1916
    Library of Congress photo LC-B2-3968-5
    Mike Green
    USS SP-237
    Ranger 97k SS Coronado, "One of the hundreds of cargo ships that carried an armed guard, usually with a Chief Petty Officer in command, during the First World War." (quoted from the original World War I era caption) This may be the freighter Coronado completed by Moore and Scott Iron Works of Oakland, California, early in 1918. However, though this ship generally resembles that seen in a January 1918 photo of the Oakland-built Coronado, there are significant differences, among them the built-up midships hull side seen here. The ship passing by in the right background is USS SP-237 (formerly named Ranger). Location is probably in the vicinity of New York City. The view may have been taken in late 1918 or early 1919, as the ship's gun platforms are empty.
    Naval Historical Center photo NH 55386
    Robert Hurst
    Ranger 83k Fine screen halftone reproduction of a photograph taken circa 1918-1919, while she was operating in icy waters in the vicinity of New York City.
    U.S. Navy photo NH 100223
    Naval Historical Center
    USC&GS Ranger
    Ranger 75k Courtesy of City Island Nautical Museum Tom Nye
    Ranger 93k NOAA
    Ranger 263k NOAA photo the3939 Robert Hurst
    Ranger 125k c. 1921
    San Juan, Puerto Rico

    Dictionary of American Naval Fighting Ships:


    One who wanders; a military scout.

    Ranger, a steam-driven, steel-hulled yacht built by Robert Jacob, City Island, N. Y., in 1910, was purchased by the Navy 22 June 1917 and commissioned as SP-237 on 9 October 1917, Lt. J. J. Smith
    in command.

    SP-237 operated as a patrol craft in the 3d Naval District until she was decommissioned on 28 April 1919 and transferred to the Coast and Geodetic Survey Office. She served with the Department of Commerce until 26 November 1930 when she was returned to the Navy. She was struck from the Navy list on 4 September 1931 and sold on 21 December 1931. The following year registry of the vessel was transferred to Panama.

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