Battery Hackleman (1)

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Battery Hackleman (1) (1904-1945) - Battery Hackleman was a reinforced concrete, Endicott Period 3 inch coastal gun battery on Fort Constitution (2), New Castle Island, Rockingham County, New Hampshire. The battery was named in G.O. 194, 27 Dec 1904, after Brigadier General Pleasant A. Hackleman, U.S. Volunteers, who was killed in action at Corinth, Mississippi, 3 Oct 1862, during the U.S. Civil War. Battery construction started in 1904, was completed in 1904 and transferred to the Coast Artillery for use 31 Dec 1904 at a cost of $ 16,654.70. Deactivated in 1945.

Endicott Period (1890-1910)

Part of the Harbor Defense of Portsmouth, New Hampshire.

Originally built as an Endicott Period concrete coastal gun battery with two 3" M1903 guns mounted on M1903 Pedestal carriages. This was a two story battery with the guns located on the upper level and the magazines below. Shells were moved from the magazine level to the gun loading platform by hand. No shell or powder hoists were provided. Electrical power was furnished by commercial power.

Battery Hackleman Armament (edit list)
Model Serial
Manufacturer Carriage Service
Original Armament
1 3" Rifle 170" M1903 88 Watervliet Pedestal, M1903, #63, Watertown 1904-1942 See note 1
2 3" Rifle 170" M1903 89 Watervliet Pedestal, M1903, #64, Watertown 1904-1942 See note 1
Replacement Armament
1 3" Rifle 154.35" M1902MI 41 Bethlehem Pedestal, M1902, #41, Bethlehem 1942-1945 See note 2
2 3" Rifle 154.35" M1902MI 42 Bethlehem Pedestal, M1902, #42, Bethlehem 1942-1945 See note 2
Source: RCW Form 1, 31 May 1919, 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
Note 1: Guns & mounts to Fort H.G. Wright, Battery North Hill. CDSG Gun Card Collection from NARA
Note 2: From Battery Hays, Fort Stark in 1942. see supplement. Processed for salvage at Fort Constitution (2) 18 Oct 1945. CDSG Gun Card Collection from NARA
Battery Hackleman Plan

World War I (1917-1918)

The U.S. entry into World War I resulted in a widespread removal of large caliber coastal defense gun tubes for service in Europe. Many of the gun and mortar tubes removed were sent to arsenals for modification and mounting on mobile carriages, both wheeled and railroad. Most of the removed gun tubes never made it to Europe and were either remounted or remained at the arsenals until needed elsewhere. The guns of Battery Hackleman (1) were not affected by the World War I redistribution or the following 1920 disarmament program.

World War II (1941-1945)

Battery Hackleman was a part of the Harbor Defenses of Portsmouth plan throughout World War II. In 1942 the M1903 guns and carriages were sent to Fort H.G. Wright and they were replaced with M1902 guns and mounts from Fort Stark, Battery Hays. When the war ended in 1945 the battery was declared surplus. The M1902 guns and carriages were processed for salvage on 18 Oct 1945.

Current Status

Part of Fort Constitution State Historical Site, New Castle Island, Rockingham County, New Hampshire. The battery structure was destroyed and built over with a Coast Guard building. No period guns or mounts in place.

Location: Fort Constitution, New Castle Island, Rockingham County, New Hampshire

Maps & Images

Lat: 43.070863 Long: -70.7101


  • U.S.Army, Supplement to the Harbor Defense Project, Harbor Defenses of Portsmouth, New Hampshire, (CCA-P-PCC), 1945, CDSG


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