William Pryce Cumby Captain William Pryce Cumby CB RN ( 20 March 1771 – 27 September 1837 ) was an officer in the Royal Navy whose excellent service during the French Revolutionary and Napoleonic Wars was highlighted when he was thrust into the limelight following his service at the battle of Trafalgar . During the battle the French almost took his vessel , the ship of the line ( " Billy Ruffian " to her crew ) , but despite mounting casualties , heavy bombardment and the death of his captain John Cooke , then Lieutenant Cumby ably took command , leading a charge that cleared his decks of boarders . He then captured the enemy ship from which the attack had come . Biography . Born into a naval family in 1771 , Pryce Cumby followed his father , Lt . David Pryce Cumby , to sea , and was made lieutenant in the general promotions that followed the outbreak of war in 1794 . He had little chance for distinction during the next eleven years , but maintained a solid reputation for good service and efficiency . Pryce Cumby served as an officer aboard the frigate , and aboard the " Thalia " between 1795 and 1798 . He was then appointed Flag Lieutenant to Vice - Admiral Alexander Graeme at the Nore , serving in this role until 1803 , when he was given command of the sloop " Swift " in the North Sea . In 1804 he was appointed first lieutenant of the third rate . Captain Cooke and his first lieutenant had an especially close professional relationship , so when the ship lined up in Admiral Collingwood ' s division on 21 October 1805 in the opening stages of the battle of Trafalgar , Cooke made the unusual move of taking Cumby and the ship ' s master Edward Overton into his confidence about the ship ' s orders and Admiral Nelson ' s confidential instructions ; in case something should happen to him , the ship would still have able , informed direction . Once action was joined , " Bellerophon " rapidly found herself sandwiched between the Spanish and the French , both pouring fire into the British . Cumby advised his captain to remove his jacket because it made him a target for French snipers , but Cooke refused and sent Cumby below to direct the gunnery . A few minutes later , hearing the rush of battle above , Cumby ran up the ladders to the deck where he met the mortally wounded Overton who informed Cumby of Cooke ' s death in hand to hand combat with a French boarding party . Cooke ' s last words had been " Tell Lieutenant Cumby never to strike ! " Realising that he was now in command of the ship , Cumby then withdrew his men from the poop deck and into the waist of the ship , where the threat from enemy grenades was not as high . He then ordered the guns trained on the French boarding parties , which they annihilated . This enabled Cumby to board the " Aigle " , at one point picking up a lit grenade to extinguish it , and capture the vessel . Proclaimed a hero after the battle , Cumby was rewarded with promotion to Post Captain and given the , another Trafalgar veteran . With this he conducted numerous raids on the coast of Santo Domingo from 1807 to 1809 . His service in the Caribbean culminated in his command of the squadron that blockaded the city of San Domingo . The operation was so successful that the city surrendered in short order , and Cumby was highly praised by his opponents for his gentlemanly behaviour following the surrender . Cumby spent more years at sea , but none rivalled the period 1805 – 1809 . From 1811 until 1815 he commanded . In 1812 he was ordered to the Davis Strait to protect the whale fishery , and in 1813 was on convoy duty in the Atlantic . From 1814 to 1815 he was in the Channel . Cumby had no further service , nevertheless , his reputation for solid service led to further rewards : command of the Royal yacht , and being made a Companion of the Order of the Bath in 1831 . In 1837 , he was appointed Superintendent of Pembroke Dockyard ; but he died in the same year in his office in Pembroke Dock , aged 66 , and was buried Park Street graveyard , Pembroke Dock . The graveyard has now been turned into a recreational area , however Cumby ' s grave remains in place . A street near the royal dockyard was named Cumby Terrace in his honour . A commemorative plaque recounts his prominence , as does a similar , larger plaque at his local church in Heighington near Durham , where he was born . The Inscription on his tomb reads Here lie The Mortal Remains of Captain William Pryce Cumby , R . N . , C . B . Of H . M . Yacht Royal Sovereign And Captain Superintendent of Pembroke Dock Yard An Officer Whose zeal and professional services At Trafalgar and St . Domingo Deserved and received the approbation Of his Country His active kindness in promoting the welfare of others procured him the affectionate regard Of all who knew him The loss of one so kind and good Has taught his relations and friends How vain is every consolation But that afforded by Religion By Christian submission By Christian Hope Born XXth March MDCCLXXI Died XXVIIth September MDCCCXXXVII