HMS Somerset (1748)

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HMS Somerset participates in the Battle of Bunker Hill
Career (Great Britain) Royal Navy Ensign
Name: HMS Somerset
Ordered: 4 September 1746
Builder: Chatham Dockyard
Launched: 18 July 1748
Fate: Wrecked, 1778
General characteristics [1]
Class and type: 1745 Establishment 70-gun third rate ship of the line
Tons burthen: 1,436 long tons (1,459.0 t)
Length: 160 ft (48.8 m) (gundeck)
Beam: 45 ft (13.7 m)
Depth of hold: 19 ft 4 in (5.9 m)
Propulsion: Sails
Sail plan: Full rigged ship

70 guns:

  • Gundeck: 26 × 32 pdrs
  • Upper gundeck: 28 × 18 pdrs
  • Quarterdeck: 12 × 9 pdrs
  • Forecastle: 4 × 9 pdrs

HMS Somerset was a 70-gun third-rate ship of the line of the Royal Navy, built at Chatham Dockyard to the draught specified by the 1745 Establishment, and launched on 18 July 1748.[1] She was the third vessel of the Royal Navy to bear the name. Somerset was involved in several notable battles of the Seven Years War and the American Revolutionary War. She was wrecked in a storm in 1778 when she ran aground on Cape Cod, Massachusetts.

Seven Years War

HMS Somerset saw action at the capture of the fortress of Louisbourg and Cape Bretton Island during the Seven Years War (a theatre known in the United States as the French and Indian War). In 1758, a British expedition under General Jeffrey Amherst besieged the fortress at Louisbourg, beginning on 8 June. The British had 39 ships with about 14,000 sailors, and a further landing force of 12,870 soldiers. The fortress was defended by 10 French ships with 3,870 sailors, and another 3,920 soldiers inside the fortress itself. The 48-day siege by Admiral Edward Boscawen and General Amherst ended with the French surrender on 26 July, clearing the way for a British expedition to sail up the Saint Lawrence River to take Quebec City the following summer.[citation needed]

The expedition against Quebec City, led by General James Wolfe, was landed by a force that included HMS Somerset. The British were victorious at the Battle of the Plains of Abraham on 13 September 1759 giving Britain control of Canada and North America's Atlantic seaboard.[citation needed]

American Revolutionary War

HMS Somerset went on to play a well documented part in the American Revolutionary War, where she served from 1774 to 1776 and again from 1777 up until her loss in 1778.

Battle of Lexington and Concord

Events might have unfolded differently on the night of 18 April 1775 had the duty watch of HMS Somerset been more alert. Paul Revere had set out that night to ride to Lexington to warn two prominent Colonial leaders, Samuel Adams and John Hancock, that their lives might be in danger. Having departed Boston by boat across the Back Bay, he narrowly avoided being noticed by HMS Somerset, which was anchored there. Had he been stopped, the militias of many towns would not have arrived in Concord, and the next day's battle of Lexington and Concord might have had a different outcome. As it was, Somerset's gun crews were able to keep rebel forces from following the retreating British troops to Charlestown on the evening of 19 April.[citation needed]

Revere's exploits led to HMS Somerset’s immortalisation in Henry Wadsworth Longfellow’s poem 'Paul Revere's Ride':

Then he said 'Good-night!' and with muffled oar
Silently rowed to the Charlestown shore,
Just as the moon rose over the bay,
Where swinging wide at her moorings lay
The Somerset, British man-of-war;
A phantom ship, with each mast and spar
Across the moon like a prison bar,
And a huge black hulk, that was magnified
By its own reflection in the tide.[citation needed]

Battle of Chelsea Creek

Somerset was the backdrop to another brief but important incident during the war, the Battle of Chelsea Creek. On the night of Saturday 27 May 1775, HM Armed Schooner Diana, under the command of Lieutenant Thomas Graves, ran aground in Chelsea Creek while attempting to keep Americans from driving British livestock from Noddle's Island in Boston Harbor, at which point the American rebels set fire to the ship. HMS Somerset's tender, Britannia (under the command of Thomas Graves' brother Lieutenant John Graves), was able to rescue the Diana's company.[citation needed]

Lt Thomas Graves went on to serve under Lord Rodney at the Saintes and as Nelson’s second-in-command at Copenhagen, eventually becoming Rear Admiral Sir Thomas Graves. He was permanently scarred by the burns he received at Noddle’s Island. He was a cousin of Admiral Thomas Graves, 1st Baron Graves who would command at the Battle of the Chesapeake in 1781 and the nephew of Admiral Samuel Graves.[citation needed]

Battle of Bunker Hill (Breed's Hill)

Shortly after those events, HMS Somerset served as the flagship of Admiral Samuel Graves at the Battle of Bunker Hill. Boston, under British control since 1768, was under siege by between 8,000 and 12,000 militia. On the night of 16 June 1775, several thousand militia forces began occupying the strategically important Charlestown Peninsula and fortified Breed's Hill, a position from which they would be able to bombard the British in Boston. At dawn, HMS Lively was first to spot the new fortification and the ship opened fire, temporarily halting the Americans' work. Admiral Graves, in HMS Somerset, awoke to the sound of gunfire he hadn't ordered. He ordered it stopped, only to reverse his order when he saw the works. He ordered all 128 guns in the harbour to open fire on the American position. The broadsides proved largely ineffective, since the ships were unable to elevate their guns sufficiently to reach the hilltop. The position was eventually taken by British troops, ferried across the bay under protection of the navy’s guns, but at considerable cost.[citation needed]


HMS Somerset’s luck ran out at the end of 1778. She was battered by gales in August and ran aground in another gale on 2 November 1778, whilst pursuing a French squadron, on Peaked Hill Bars off Provincetown, Massachusetts. Twenty of her crew drowned while many were rescued by locals.

The Somerset's wreckage was uncovered briefly by storms in 1886 and 1973 and can still be seen at exceptionally low waters at Dead Man's Hollow, near Provincetown. On 11 April 2010 storms caused part of the wreckage to be uncovered, allowing the National Park Service to commission a digital survey using 3D imaging technology to record the part of the wreck that was now visible.[2]


HMS Somerset is remembered by a historical re-enactment society in Boston, called 'His Majesty’s Ship Somerset'.

Further reading

The third HMS Somerset is the subject of the book HMS Somerset, 1746–1778. The Life and Times of an Eighteenth Century British Man-o-War and Her Impact on North America, Marjorie Hubbell Gibson, Abbey Gate Press, 1992, currently out of print.



  • Lavery, Brian (2003) The Ship of the Line – Volume 1: The development of the battlefleet 1650–1850. Conway Maritime Press. ISBN 0-85177-252-8.

External links