Battery Trevor

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Battery Trevor (1903-1933) - Battery John Trevor is a concrete Endicott Period Coastal Battery located on Fort Casey (1), Whidbey Island, Island County, Washington. Named in G.O. 194, 27 Dec 1904, after 1st Lt. John Trevor, 5th U.S. Cavalry, who died 29 Sep 1864, of wounds received in action at the Third Battle of Winchester, Virginia, 19 Sep 1864, during the U.S. Civil War. The Battery was begun August 1903 and completed June 1905 and transferred to the Coast Artillery 22 may 1907 at a cost of $15,800. The guns were removed in 1933 and the carriages scrapped in 1942.

Battery Trevor
Battery Trevor Gun #1

Battery Trevor History

Part of the Harbor Defense of Puget Sound. Battery Trevor was designed to protect both the Straight of Juan De Fuca and the Admiralty Inlet to Puget Sound.

Originally built with two, 3" M1903 rifles mounted on M1903 barbette pedestal carriages. The original guns were removed 16 Nov 1933 and shipped to Fort Mills, P.I. The carriages were removed and scrapped in FY 1942 during World War II.

Battery Trevor Armament (edit list)
Model Serial
Manufacturer Carriage Service
1 3" Rifle 170" M1903 39 Watervliet Barbette Pedestal, M1903, #20, Watertown 1907-1933 See Note 1
2 3" Rifle 170" M1903 50 Watervliet Barbette Pedestal, M1903, #21, Watertown 1907-1933 See Note 1
Source: RCW Form 1, 1 Mar 1933, 1 Sep 1943, CDSG, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages 74-75, 217.
Note 1: Guns sent to Fort Wint P.I. 16 Nov 1933. CDSG Gun Card Collection from NARA
Battery Trevor Plan a/o 1 Mar 1933

Current Status

Battery Trevor has two 3" guns with barbette pedestal carriages currently on display that were obtained in the 1960s from Battery Flake, Fort Wint, Subic Bay, Philippines. Both breech blocks are missing because they were thrown into the Pacific Ocean to prevent enemy use when Fort Wint was abandoned at the beginning of World War II. Both guns and carriages show battle damage.

The battery was clean and dry when visited. The storeroom was locked but both magazines were open.

Location: On Fort Casey (1), Whidbey Island, Island County, Washington.

Maps & Images

Lat: 48.157206 Long: -122.675173



Visited: 14 Apr 2010, 18 Jul 2008

Battery Trevor Picture Gallery

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