Brewster Islands Military Reservation
|Brewster Islands Military Reservation|
|Part of Harbor Defenses of Boston|
|Boston Harbor, Massachusetts|
|Controlled by||Boston Harbor Islands National Recreation Area|
|Built by||United States Army|
|Battles/wars||World War II|
Outer Brewster Island was acquired by the US government in 1913, followed by Great Brewster Island in 1917. In 1920 there was a proposal to build a naval-type turret with two 16-inch guns on Great Brewster Island, but this was not implemented. Calf Island Military Reservation was also considered, but the battery was finally built (without a turret) as Fort Duvall. The Brewster Islands Military Reservation was built in World War II on these islands. Its mission was to protect the Boston Harbor from possible air and naval attack. It never fired its guns, but it did play an important part in the defense of the harbor.
Great Brewster Island
This island had an observation post and mine casemate for controlling a minefield in the harbor. The island also had an Anti-Motor Torpedo Boat Battery (AMTB), called AMTB 942. This AMTB battery had an authorized strength of four 90 mm guns, two on fixed mounts and two on towed mounts, as well as two towed 37 mm guns.
Outer Brewster Island
This island had a battery of two 6-inch M1 guns on long-range shielded carriages, with a large magazine and fire control bunker between them. The battery was initially called Battery 209, but later named Battery Jewell. A fire control tower and an SCR-296 radar were also on the island.
The site today consists of the foundations of buildings and gun mounts, and the bunker of Battery Jewell.
- Berhow, Mark A., Ed. (2015). American Seacoast Defenses, A Reference Guide, Third Edition. McLean, Virginia: CDSG Press. ISBN 978-0-9748167-3-9.
- Lewis, Emanuel Raymond (1979). Seacoast Fortifications of the United States. Annapolis: Leeward Publications. ISBN 978-0-929521-11-4.
- Parkman, Aubrey (1978). Army Engineers in New England 1775-1975. Waltham, MA: US Army Corps of Engineers, New England Division.
- Island Facts: Great Brewster Island at NPS.gov
- List of all US coastal forts and batteries at the Coast Defense Study Group, Inc. website
- FortWiki, lists most CONUS and Canadian forts
- Harbor Defenses of Boston at NorthAmericanForts.com