241st Coast Artillery (United States)

The 241st Coast Artillery was organized 30 April 1924 as the Massachusetts National Guard component of the Harbor Defenses of Boston (HD Boston), Massachusetts. The 9th Coast Artillery was the Regular Army component of those defenses.[1][3] In October 1944 the regiment was broken up into two battalions as part of an Army-wide reorganization.[1]

The regiment's lineage originated with the 1st Infantry Regiment, Massachusetts National Guard (MANG), organized in 1878. Redesignated the 1st Regiment Heavy Artillery, MANG on 15 June 1897. Redesignated the 1st Heavy Artillery, Massachusetts Volunteers 9 May 1898, stationed at various forts in Massachusetts, and mustered out 14 November 1898.[4] Reorganized and redesignated Coast Artillery Corps, MANG in 1905. Following the American entry into World War I in April 1917, called into federal service 25 July 1917 and redesignated 16th through 27th companies, Coast Defenses of Boston. Elements served with the 55th Artillery (Coast Artillery Corps) in France.[5] Reorganized in 1920 as the 1st Coast Defense Command, CAC MANG.[1][6]

Organized 30 April 1924 by redesignating the 241st Artillery, Coast Artillery Corps (previously the 1st Coast Defense Command), Massachusetts National Guard.[1][6]

On 16 September 1940 the regiment was inducted into federal service and moved to Fort Andrews 23 September 1940. On 12 December 1941 the HQ moved to Fort Dawes; moved to Fort Heath in November 1943.[1][7]

In September 1943 the 4th Battalion of the 241st transferred to the Harbor Defenses of Portland, Maine and was redesignated as the 3rd Battalion, 8th Coast Artillery, with Batteries K and M of the 241st becoming Batteries G and H of the 8th.[1][8]

The regimental HQ moved to Fort Banks in March 1944.[1]

On 7 October 1944 the regiment was broken up into the 187th and 241st Coast Artillery Battalions (at Fort Ruckman and Fort Warren, respectively), which were deactivated 1 April 1945.[7]

• Seacoast defense in the United States
• United States Army Coast Artillery Corps
• Harbor Defense Command

• Gaines, William C., Historical Sketches Coast Artillery Regiments 1917-1950, National Guard Army Regiments 197-265
• Gaines, William C., Coast Artillery Organizational History, 1917-1950, Coast Defense Journal, vol. 23, issue 2 (Regular Army regiments)
• Insignia of the Coast Artillery Corps at the Coast Defense Study Group
• Rinaldi, Richard A. (2004). The U. S. Army in World War I: Orders of Battle. General Data LLC. ISBN 0-9720296-4-8.
• Stanton, Shelby L. (1991). World War II Order of Battle. Galahad Books. ISBN 0-88365-775-9.

• Berhow, Mark A., Ed. (2015). American Seacoast Defenses, A Reference Guide, Third Edition. McLean, Virginia: CDSG Press. ISBN 978-0-9748167-3-9.

• Greg Hagg; Bolling Smith; Mark Berhow. "Insignia of the Coast Artillery Corps" (PDF). The Coast Defense Study Group, Inc. Retrieved 18 May 2018.