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Section Patrol Craft Photo Archive

Mary Louise (SP 356)


  • Built by the Milton Point Shipyard, Rye, NY
  • Acquired by the Navy 24 August 1917
  • Placed in service as USS Mary Louise 27 August 1917
  • Struck from the Navy Register and returned to her owner 30 October 1917
  • Registered in 1948 to Helen B. Sears of Seattle, WA as the yacht John Barry
  • Fate unknown.


  • Displacement 17 t. (1948)
  • Length 47' 10"
    1948 - 40'
  • Beam 9' 6"
    1948 - 11'
  • Draft 4'
  • Speed 8 kts.
  • Complement: One (1948).
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    DANFS history entry located on the Naval History and Heritage Command website
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