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.