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Unnumbered Vessels Photo Archive

Siam Duffey

Castle Class Trawler:

  • Built in 1918 as the Fishing Vessel Fontenoy by Bow McLachlan and Company Paisley, Scotland for Rhondda Fishing Co., Ltd., Grimsby, England
  • Launched 6 November 1918
  • Acquired by the Royal Navy in 1918 and placed in service as HMT Fontenoy
  • Leased to the U.S. Navy 28 May 1919 and commissioned UST Siam Duffey the same day
  • Struck from the Navy list 1 October 1919 and returned to the Admiralty
  • Sold in 1922 to Soc. Anon. Armement Ostendais A/S, Ostend, Belgium and renamed Edouard Anseele
  • Acquired by the Royal Navy in February 1940 and renamed HMT Fontenoy (FY 3684)
  • Sunk 19 November 1940 by German aircraft northeast of Lowestoft, England.


  • Displacement 275 t.
  • Length 135'
  • Beam 23'
  • Draft 12'
  • Speed 10 kts.
  • Complement 22
  • Armament: One 12-pounder
  • Propulsion: One boiler, one 87hp Fraser and Chalmers triple-expansion steam engine, one shaft.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Siam Duffey 98k Photo from "Sweeping the North Sea Mine Barrage by the U.S. Navy North Sea Minesweeping Detachment" Joe Radigan

    Commanding Officers
    01LTJG Thomas Kennedy, USNRF - Awarded the Navy Cross (1920)1919
    Courtesy Joe Radigan

    View the Siam Duffey
    DANFS history entry located on the Naval History and Heritage Command website
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    This page created by Joseph M. Radigan and maintained by David Wright
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