His first school was at Burton-upon-Trent, where a slight incident seemed to designate his future politics and fortitude. In 1745, when the Pretender marched into the heart of the kingdom, without being joined by his friends or opposed by his enemies, as Gibbon antithetically observed, all the boys at the school, excepting young Jervis and Dick Meux, (afterwards the eminent brewer,) wore plaid ribands sent to them from home, and they pelted their two constitutional playmates, calling them Whigs.

His father designed young Jervis for the law; but, in 1747, removing to Greenwich on being appointed Counsel to the Admiralty and Auditor to the Hospital, naval sights were too near not to prove a strong temptation to the mind of an animated and vigorous boy. His parents were still strongly for the adoption of his father's profession; but there was another authority on the subject, the family coachman, one Pinkhorne, who, saying that it was a shame to go into a profession where all were rogues, determined the future hero; and, before the year was over, he ran away, to commence life as a sailor. He was reclaimed, however, by his family, and was regularly entered in the navy, in January 1748, on board the Gloucester, fifty guns, Commodore Townshend—twenty pounds being all that was given to him by his father for his equipment. The Gloucester sailed for the West Indies; and thus, at the age of thirteen, young Jervis began the world. It appears that the rigid economy of his father, combined with the singular good sense of this mere child, urged him to every means of acquiring the knowledge of his profession. The monotonous life of a guard-ship already seemed to him a waste of time, while the expenses on shore must have been ruinous to his slender finances. He therefore volunteered into whatever ship was going to sea. He thus writes to his sister from on board the Sphinx, 1753:—"There are many entertainments and public assemblies here, but they are rather above my sphere, many inconveniences and expenses attending them; so that my chief employ, when from my duty, is reading, studying navigation, and perusing my own letters, of which I have almost enough to make an octavo volume."

At length, however, his twenty pounds were exhausted; and, at the end of three years, he drew for twenty pounds more. It is vexatious to say that his bill was dishonoured; and he never received another shilling from any one. It is scarcely possible to conceive that so harsh a measure could have been the result of intention; but it subjected this extraordinary boy to the severest privations. To take up the dishonoured bill, he was obliged to effect his discharge from one ship into another, so as to obtain his pay tickets, which he sold at forty per cent discount. His remaining six years on the station were spent in the exercise of a severe economy, and the endurance even of severe suffering. He was compelled to sell all his bedding, and sleep on the bare deck. He had no other resource than, generally, to make and mend, and always to wash, his own clothes. He never afforded himself any fresh meat; and even the fruit and vegetables, which are so necessary and so cheap, he could obtain only by barter from the negroes, for the small share of provisions which he could subduct from his own allowance. True as all this doubtless is, it reflects more severely on the captain and officers of his own ship, than even upon his parents. The latter, on the other side of the Atlantic, might have no knowledge of his difficulties; but that those who saw his sufferings from day to day could have allowed them to continue, argues a degree of negligence and inhumanity, of which we hope that no present instance occurs in our navy, and which at any period would appear incomprehensible. In 1754, young Jervis returned to England, and passed his examination for lieutenant with great credit.

The commencement of the war with France was, like the commencement of English wars in general, disastrous. We seldom make due preparation. Fleets inferior to the enemy in equipment and number, are sent out on the emergency; detachments of troops are sent where armies should have gone; and thus victory itself is without effect. Thus for a year or two we continue blundering if not beaten, and angry with our generals and admirals for failing to do impossibilities. At last the nation becomes fairly roused; the success of the enemy makes exertion necessary; their insolence inflames the popular indignation; a great effort is made; a triumph is obtained, and a peace follows, which might have been accomplished half a dozen years before, at a tenth part of the expense in blood and treasure which it cost to consummate the war. Our troops under Braddock, a brave fool, were beaten by the French and Indians in America. Our Mediterranean fleet was baffled under the unfortunate command of Byng. Minorca was taken before our eyes, and the naval and military stars of England seem to have gone down together. Yet this era of national dishonour and public disgust was followed by the three years of Chatham's administration, a period of triumph that equaled the campaigns of Marlborough at the commencement of the century, and was scarcely eclipsed even by the splendours that followed its close.

The skill and talent of young Jervis had already given him distinction among the rising officers of the feet. He had become a favourite with Admiral Saunders, was taken with him from ship to ship; and when the admiral was recalled from the Mediterranean to take the command of the naval force destined to co-operate in the attack on Quebec, by the heroic and lamented General Wolfe, young Jervis was selected to be first lieutenant of the Prince, which bore the admiral's flag. On the passage out, the general and his aide-de-camp, Captain, afterwards the well-known Colonel Barré, were guests on board the Prince, and of course Jervis had the advantage of their intelligent society. In February 1759, the fleet sailed from England, and in June proceeded from Louisburg to the St Lawrence. Lieutenant Jervis was now appointed to the command of the Porcupine sloop; and on the general requesting a naval force to escort his transports past Quebec, the Porcupine was ordered by the admiral to lead. The service was one of extreme difficulty; for the attempt to sound the channel the day before had failed, though it was made by the master of the fleet, Cook, afterwards the celebrated navigator. The winds suddenly falling calm, prevented the Porcupine from reaching her station. A heavy fire was instantly opened upon her from every gun that could be brought to bear, and the army were in terror of her being destroyed, for the general was on board. But Jervis's skill was equal to his gallantry; he hoisted out his boats, cheered his men through the fire, and brought his ship to her station.

A little incident occurred on the night before the memorable engagement, which even at this distance of time is of painful interest, but which shows the confidence reposed in the young naval officer by the hero of Quebec. After the orders for the assault next day were given, Wolfe requested a private interview with him; and saying that he had the strongest presentiment of falling on the field, yet that he should fall in victory, he took from his bosom the miniature of a young lady to whom he was attached, gave it to Jervis, desiring that, if the foreboding came to pass, he should return it to her on his arrival in England. Wolfe's gallant fate and brilliant victory are known: the picture was delivered to Miss Lowther.

After the capture of Quebec, Jervis was dispatched to England; and was appointed to the Scorpion, to carry out important despatches to General Amherst. On this occasion, he gave an instance of that remarkable promptitude which characterised him throughout his whole career. The Scorpion was in such a crazy state that she had nearly foundered between Spithead and Plymouth. On reaching the latter port, and representing at once the condition of the vessel and the importance of the despatches, the port-admiral instantly ordered him to proceed to sea in the Albany, a sloop in the Sound. But the Albany had been a long time in commission; her people claimed arrears of pay; and by no means relishing a voyage across the Atlantic in such weather, they absolutely refused to heave the anchor. Their young commander first tried remonstrance, but in vain; he then took a more effectual means—he ordered his boat's crew, whom he had brought from the Scorpion, to take their hatchets and cut the cables, and then go aloft to loosen the foresail. Perceiving the kind of man with whom they had to do, the crew submitted, and the Albany instantly proceeded to sea: the ringleaders were punished; and the service was performed. The Albany made New York in twenty-four days.

In October 1761, Commander Jervis was made Post, into the Gosport of 60 guns. Among his midshipmen was the afterwards Admiral Lord Keith. In 1762, peace was made. The Gosport was paid off next year, and Captain Jervis did not serve again until 1769, when he commanded the Alarm of 32 guns for the next three years.

A striking incident occurred during the cruise of this vessel in the Mediterranean, exhibiting not only the spirit of her captain, but the historic recollections by which that spirit was sustained. One Sunday afternoon, the day after her arrival at Genoa, two Turkish slaves, in enjoyment of the holiday's rest from labour, sauntered from their galley near the mole. Seeing the Alarm's boat, they jumped into her, wrapped themselves in the British colours, and exclaimed, "We are free!" The Genoese officer on duty, however, ordered them to be dragged out, which was done, though one of them tore away in his struggle a piece of the boat's pendant. On the circumstance reaching the captain's ears he was indignant, and demanded instant reparation. To use his own language:—"I required," said he, "of the Doge and Senate, that both the slaves should be brought on board, with the part of the torn pendant which the slave carried off with him; the officer of the guard punished; and an apology made on the quarterdeck of the Alarm, under the king's colours, for the outrage offered to the British nation."

On the following Tuesday this was complied with in all the particulars; but, unhappily, the government at home did not exhibit the spirit of their gallant officer abroad; and in a letter which he addressed to his brother he says:—"I had an opportunity of carrying the British flag, in relation to two Turkish slaves, as high as Blake had ever done, for which I am publicly censured; though I hope we have too much virtue left, for me not to be justified in private."