Sea Fencibles

The Sea Fencibles were a naval militia established to provide a close-in line of defence and obstruct the operation of enemy shipping, principally during the French Revolutionary and Napoleonic Wars.

The earliest recorded use of the term was in 1793, when Royal Navy captain Sir Home Popham organised groups of fishermen to guard against French vessels off the coast of Nieuwpoort, Belgium. At Popham's suggestion the British Admiralty subsequently authorised the formation of co-ordinated Sea Fencible units along the English and Irish coasts, supported by a network of Martello towers. Popham's Sea Fencible companies consisted of merchant seamen using their own private or commercial vessels, but operating under letters of marque that authorised them to capture enemy ships should opportunity arise. The Navy provided the Fencibles with uniforms and weapons; it also protected them from the depredations of navy press gangs.

The British Admiralty disbanded its Sea Fencible units in 1810. However the United States adopted a similar concept during the War of 1812 and the American Civil War (1860-5), as did its adversary in the Civil War, the Confederacy.

Great Britain


Sea Fencibles
Active 1798–1810
Country United Kingdom
Branch Royal Navy
Role Coastal defence
Size 30,000 men by 1805[1]
Sir Home Popham, originator of the "Sea Fencibles" concept in 1793.

Royal Navy captain Sir Home Popham developed the Sea Fencibles concept while serving as Britain's Agent for Transport in Flanders during the French Revolutionary Wars. In July 1793 Popham went to Ostend to oversee the fleet of Navy transports supplying the British Army. In October a French army of 12,000 men laid siege to the British-held town of Nieuwpoort, which was defended by a garrison of 1,300. French capture of Neiuwpoort would have cleared the path for an assault on the British headquarters at Ostend.[2]

In support of the Nieuwpoort garrison, Popham armed and equipped the town's fishing fleet and led it in action against French vessels along the coast.[3] In correspondence with the Admiralty Popham named his impromptu fleet the "Sea Fencibles," drawing an analogy with the land-based Scottish militia of similar name.[2][4]

After three days the French abandoned the siege of Nieuwpoort and withdrew towards Toulon. Both the Army's Commander-in-Chief the Duke of York and field commander General Sir Charles Grey subsequently acknowledged that Popham's actions in "arming the fishermen of Flanders in defence of their own towns" had played a significant role in preserving British control of Nieuwpoort.[2][5]

Popham himself was also impressed with the success of the Sea Fencibles in keeping the coast clear of enemy landing craft. When a French invasion of Britain appeared imminent in 1798, Popham recommended that Admiralty create a similar body to defend the coast between Cornwall and the Firth of Forth.[3][6][7] Britain's Sea Fencibles were duly formed on 14 May 1798 "for the protection of the coast, either on shore or afloat; comprising all fishermen and other persons occupied in the ports, and on the coast, who, from their occupations are to be unpressed." Their tasks were to defend the Martello towers along the British coastline, patrol and survey the beaches where a French invasion force might land, and to maintain a fleet of armed commercial vessels in order to capture enemy shipping and defend against invasion barges.[1]


The Sea Fencibles were divided into 36 companies, with each company responsible for patrolling and defending a section of the coastline. Company command was vested in three Royal Navy captains and up to six Lieutenants per district. The district captains reported in turn to the Director of Sea Fencibles, an admiral.

A senior Sea Fencibles captain received £1 15s a day (equivalent to £127 today), junior captains received £1 10s (equivalent to £109 today), and Lieutenants 8s 6d (equivalent to £31 today). Petty Officers received 2s 6d (equivalent to £9 today) for each day they assembled, while Ordinary Seamen received 1 shilling and provisions (food and drink), or 2 shillings if no provisions were available (equivalent to £4 and £7 today).[8] Sea Fencibles were also eligible to receive prize and salvage money. For example, on 13 June 1805 the sixth-rate frigate Vestal and the Sea Fencibles recaptured the Industry, off Hastings, and shared the subsequent salvage money.[9]

Sea Fencible volunteers were trained in the use of arms and were required to man watch and signal towers, and fixed and floating batteries along the coasts and ports. Those who operated commercial vessels, for example local fishermen, received up to four cannons per craft and training in their maintenance and use. The Admiralty commissioned a small number of armed vessels for use in districts where there were insufficient private craft to meet a Sea Fencible company's needs. A member of the Sea Fencibles would spend one day a week training. They were also allowed to choose their own Petty Officers at the rate of one per 25 men. All Sea Fencibles received a certificate that exempted them from impressment into the Navy. The Treasury argued that the exemption from impressment was the principal reason smugglers joined as impressment was a common punishment for smuggling.[10]

The Sea Fencibles operated in accordance with letters of marque authorising the capture of French or Spanish merchant shipping and a share of the proceeds should the seized vessel then be sold. Their fleet consisted of small vessels such as colliers and coasting vessels such as hoys adapted to serve as gunboats. The owners were expected to pay for the fitting of slides, ring and eye bolts for the installation of guns, usually two forward and two aft, and in smaller craft to fit sweeps for use in calms. The Admiralty provided guns, ammunition and powder, and it required the ship owners to keep close and regular accounts of their use. The owners were under orders to co-operate with the Royal Navy, and they were entitled to payment of compensation, according to the size of their ships and the amount of time they were required.

For instance, on 28 September 1804 the Navy held a meeting with the owners of 16 hoys at Margate. The Navy then hired the vessels for the defence of the coast. The Navy manned each vessel with a regular Navy man as master and nine men from the Sea Fencibles.[11]


Captain Nathaniel Portlock RN, Commander of the Dartmouth Sea Fencibles 1805-1807.

Sea Fencibles recruitment was brisk with 23,500 volunteers in the first four years. Officer recruitment also proceeded swiftly, particularly among younger captains who lacked the seniority for an ocean-going command. By 1803, one third of Sea Fencibles captains were men promoted to that rank within the preceding twelve months.[1] Sea Fencibles command also offered the prospect of relatively easy service on full pay. For this reason it was appealed to a group of older captains whose Navy careers were near their natural end. The oldest captain, Sir Edmund Nagle, had served at sea for more than three decades before taking command of the Sea Fencibles at Shoreham-by-Sea in 1803.[1]

Home Popham himself was appointed to head up the district between Beachy Head and Deal, the area considered at greatest risk of French invasion.[12] Another Sea Fencible was Francis Austen, a naval captain and future admiral who was the brother of the novelist Jane Austen. He was appointed to raise and organise a corps of Sea Fencibles to defend a strip of the Kentish coast.

Active duty

On 13 November 1798 a French privateer appeared off Hastings. Captain E.H. Columbine of the Sea Fencibles put a number of his men on the cutter Lion, offered by a Mr. Wexham, and set out after the French vessel. They caught up with their quarry after a chase and captured her after "a little firing" that resulted in the death of one Frenchman. The privateer was the Success, of Cherbourg, Nicholas Dubois, master, with four guns and 24 men. She had been out four days without making any captures. Captain Columbine remarked on the "zeal and readiness" of the Hastings men.[13]

A second case occurred on 9 January 1799. The next day Captain Edward Buller, commander of the Sea Fencibles along the coast of Devon, reported that on the previous day, the brig Susannah had left Dartmouth only to fall prey to the French 14-gun privateer Heureux Speculateur. The Brixham Sea Fencibles. seeing this take place, took a boat, and armed only with muskets and pikes, succeeded in recapturing the Susannah and her prize crew. Lieutenant Nicholas, with the assistance of Revenue Collector Brooking, who provided small arms and a boat, took another detachment of Sea Fencibles and, accompanied by a boat from the cutter HMS Nimble, set off, unsuccessfully, to capture the privateer.[14]

On 11 March of the same year the Margate Sea Fencibles were somewhat more successful. When a small cutter was observed boarding two brigs eight or nine miles from the North Foreland, 40 or 50 Sea Fencibles pushed off in three boats and recaptured the two brigs, the privateer having made off.[15]

Another case occurred on 13 June 1804. HM hired armed cutter Princess Augusta, under the command of Lieutenant John Tracey, encountered a 14-gun French privateer off Huntcliff.[16] During the engagement, which lasted nearly four hours, the Princess Augusta took several shot near the water line and sustained extensive damage to her rigging. Still, she suffered only three men wounded, though one desperately. The French vessel sheered off on the approach of two schooners manned with Sea Fencibles from Redcar.[16] The French privateer reportedly was under the command of a notorious pirate with the name "Blackman".[17]

The Sea Fencibles also acted as a coastguard or lifeboat service. When HMS Brazen wrecked in 1800, the Sea Fencibles attempted a rescue. Similarly, in January 1809, when HMS Pigeon was wrecked at Kingsgate, near Margate, the Sea Fencibles helped rescue the survivors.

In February 1810, when it became clear that the threat of invasion by Bonaparte had passed, the Sea Fencibles were disbanded.

River Fencibles

In 1798 watermen and other groups of river tradesmen on the River Thames voluntarily formed associations of River Fencibles. Officially established in 1803 as "Corps of River Fencibles of the City of London", by 1804 they had uniformed commissioned officers in command.

Members of the Corps escorted the barge carrying the body of Lord Nelson along the Thames in small boats during his state funeral in 1806.

In 1807 River Fencibles sailed to Copenhagen to help bring back some of the Danish vessels captured there after the second Battle of Copenhagen. The Greenwich River Fencibles consisted of a commandant, three captains, six lieutenants, 24 masters, 24 mates, and 157 gunners and privates. The Government provide pikes, but nothing else, so the men defrayed their own expenses. The Greenwich River Fencibles sent two officers and 126 men to Copenhagen.

The City of London, Loyal Greenwich, and Royal Harbour River Fencibles also contributed men to the Walcheren expedition in 1809.[18] The Greenwich River Fencibles alone sent two officers and 130 men on the Walcheren expedition, two of whom were killed.[19] In all, about 300 Fencibles volunteered to serve at Copenhagen and about the same number served on the Walcheren Expedition.[20]

The Corps was disbanded in 1813.[21]

Irish Sea Fencibles

By Admiralty Order, 20 Sea Fencible units were established and a network of Martello towers constructed to protect the Irish coastline.[22] The number of men and boats per district varied widely and the British had concerns about their reliability, especially given Robert Emmet's insurrection in Dublin in 1803.

In 1804, the Irish Sea Fencibles had some 28 gun vessels of various sorts - a brig, three galliots, and the rest sloops. Generally these carried two 18-pounder guns and two 18-pounder carronades. The owners usually provided a crew consisting of four men and a boy, with the plan that Sea Fencibles would augment this cadre when the vessels had to put out to sea.[22]

United States

United States Sea Fencibles
Active 1813–1815
Country United States
Branch United States Navy
Role Coastal defence
Size c. 1,000 men

War of 1812

"... within the five cities of Boston, New York, Philadelphia, Baltimore and Norfolk, there are a large number of seafaring men, who from their hardihood and habits of life, might be very useful in the defense of the seaboard, particularly in the management of the great guns...."

— Report, U.S. Senate Naval Affairs Committee, June 1813

On July 26, 1813, during the War of 1812 with the United Kingdom, the United States Congress passed "An act to authorise the raising [of] a Corps of Sea Fencibles ... not to exceed one year [service], and not to exceed ten companies who may employed for the defense of the ports and harbors of the United States..."


At Baltimore, two companies were raised under the command of Captains Matthew S. Bunbury and William H. Addison. Though generally mariners by trade, the Sea Fencibles were equipped and organized under the authority of the War Department. Officers received the uniform, pay, and rations of the Army, while the balance of each company (boatswains, gunners, and privates) received the uniform, pay, and rations of the Navy.

A company consisted of 107 officers and enlisted men.

No. Rank Pay
1 Captain $40
1 First Lieutenant $30
1 Second Lieutenant $25
1 Third Lieutenant $23
1 Boatswain $20
6 Gunners $20
6 Quarter-gunners $18
90 Privates $12

Both companies at Fort McHenry were considered part of the regular garrison. Records indicate that Captain Bunbury's company was quartered at Fort McHenry, while Addison's men were quartered at Fort Covington. Their duties consisted of manning the barges, maintaining the chain-mast boom, providing guard duty, and manning the great guns of Fort McHenry's water batteries.


Certificate of membership of Boston Sea Fencibles dated 1819. Preserved in the United States Marine Corps Archive.

A similar company was raised in Boston in early 1814, comprising unemployed merchant seamen alongside wealthier men seeking more interesting service than that offered by land-based militia.[23] For the Boston company, Fencibles service was elevated to something greater than a purely military role. In addition to coastal defence activities, members of the Boston Sea Fencibles were exhorted to engage in charitable and community works as part of a public obligation to society.[24] According to the constitution, no decent inhabitant of New England could "justly withdraw himself or decline to render, with promptitude and zeal, his utmost services" through involvement with the Fencibles.[25]

The Boston Sea Fencibles proved popular with local residents, though they never saw active service in defending the port.[24] A steady flow of donations was sufficient to provide for a standard uniform for each member, comprising a hat made of tarpaulin, a blue short jacket and trousers, and weapons including a cutlass and boarding pike. The company was headquartered at a gun-house near the Providence naval depot under the command of a Captain Nehemiah Skillings. A quantity of iron 18-pounder and 24-pounder cannons were made available for their use, and were deployed for target practice on open ground near Boston's City Point. The company was formally disbanded when war with Britain ended on 24 December 1814.

On March 3, 1815, Congress repealed the act establishing the Corps of Sea Fencibles, though several companies continued to operate over the following decade.[25]

Civil War

There were sea fencibles in the Confederate Army in Charleston. John Symon started a unit known as "Symon's Sea Fencibles", which was a land-based unit that performed coastal surveillance, probably in civilian clothes not uniforms. Surprisingly, it had a Hispanic officer. There is no record of this unit ever fighting. Many of the members were disgruntled because they received the $11 pay of the Confederacy but wanted the $15 pay that the Union Navy offered. Thus, by the end of 1861, the unit was disbanded; its members probably later joined other local units.


There were Sea Fencible units attached to the battalions of St. John, Charlotte and Northumberland counties in New Brunswick during the War of 1812 to protect port facilities in the colony. They were raised among seafaring men in coastal communities and seem to have all disbanded after the war.

From 1833 to 1867, there was a unit of Saint John Sea Fencibles that functioned primarily as an artillery unit. Its officers and men wore naval uniforms.


  1. 1 2 3 4 Rogers, p.43 in Philp (ed.) 2006
  2. 1 2 3 Popham 1991, p.45
  3. 1 2 Naval Chronicle, Vol. 1, p.380.
  4. Browne 1854, p. 368
  5. Correspondence, Duke of York and Albany, Sir Charles Grey, 2 November 1793. Cited in Popham 1991, p.53
  6. National Maritime Museum - "Who were the Sea Fencibles?"
  7. Popham 1991, p. 55
  8. "Sea Fencibles Pay Lists ADM28". National Archives.
  9. The London Gazette: no. 15908. pp. 453–454. 8 April 1806.
  10. Daly (2007), p.44.
  11. The Naval Chronicle, Volume 12, p.329.
  12. Popham 1991, pp.55-6.
  13. The London Gazette: no. 15080. p. 1085. 13 November 1798.
  14. The London Gazette: no. 15114. p. 229. 9 March 1799.
  15. The London Gazette: no. 15097. p. 37. 29 December 1807.
  16. 1 2 Naval Chronicle, (Jul-Dec 1805) Vol. 12, p.51.
  17. Suffolk notes from the year 1729. Compiled from the files of the "Ipswich Journal" (1883), p.155.
  18. The London Gazette: no. 16650. pp. 1971–1792. 26 September 1812.
  19. Richardson (1834), p. 23.
  20. Great Britain, House of Commons Papers, Vol. 23, p.79.
  21. Records of the Corps of River Fencibles of the City of London : City of London Library
  22. 1 2 Kerrigan (1980), pp.188-191.
  23. Smith, Joshua M. "The Yankee Soldier's Might: The District of Maine and the Reputation of the Massachusetts Militia, 1800—1812". New England Quarterly. New England Quarterly. 84 (2): 252–253. doi:10.1162/tneq_a_00088. JSTOR 23054802.
  24. 1 2 Forbes, John D. (December 1938). "European Wars and Boston Trade, 1783-1815". The New England Quarterly. New England Quarterly. 11 (4): 727–728. JSTOR 360642.
  25. 1 2 "Constitution and Exercise of the Boston Sea Fencibles," cited in Herrera, Ricardo A. (January 2011). "Self-Governance and the American Citizen as Soldier, 1775-1861". The Journal of Military History. Society for Military History. 65 (1): 30. JSTOR 2677429.


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