In the early days of May, 1797, Parker reached the Nore, a point of land dividing the mouth of the Thames and the Medway. Probably on account of his former experience as a seaman, he was drafted on board the Sandwich, the guardship that bore the flag of Admiral Buckner, the Port Admiral. The mutinous spirit which afterwards broke out certainly existed on board the Nore squadron before Parker’s arrival. Communications were kept up in secret between the various crews, and the mischief was gradually drawing to a head. But though he did not originate the feeling of insubordination, the ardent temper, boldness, and superior intelligence of Parker soon became known to his comrades, and he became a prominent man among them. Their plans being at last matured, the seamen rose simultaneously against their officers, and deprived them of their arms, as well as of all command in the ships, though behaving respectfully to them in all other ways. Each vessel was put under the government of a committee of twelve men, and, to represent the whole body of seamen, every man-of-war appointed two delegates and each gunboat one to act for the common good. Of these delegates Richard Parker was chosen president, and in an unhappy hour for himself he accepted the office. The representative body drew up a list of grievances, of which they demanded the removal, offering return immediately after to their duty. The demands were for increased pay, better and more abundant food, a more equal division of prize-money, liberty to go on shore, and prompt payment of arrears. A committee of naval inquiry subsequently granted almost all their demands, thereby acknowledging their justice. Parker signed these documents, and they were published over the whole kingdom with his name attached, as well as presented to Port Admiral Buckner, through whom they were sent to the Government. When these proceedings commenced the mutineers were suffered to go on shore, and they paraded the streets of Sheerness, where lay a part of the fleet, with music and the red flag flying.

But on the 22nd of May, troops were sent to Sheerness to put a stop to these demonstrations. Being thus confined to their ships, the mutineers, having come to no agreement with Admiral Buckner, began to take more decisive measures for extorting compliance with their demands, as well as for securing their own safety. The vessels at Sheerness moved down to the Nore, and the combined force of the insurgents, which consisted of twenty-five sail, proceeded to block up the Thames, by refusing a free passage, up or down, to the London trade. Foreign vessels, and a few small craft, were suffered to go by, after having received a passport, signed by Richard Parker, as president of the delegates.

In a day or two the mutineers had an immense number of vessels under detention. The mode in which they kept them was as follows: The ships of war were ranged in a line, at considerable distances from each other, and in the interspaces were placed the merchant vessels, having the broadsides of the men-of-war pointed to them. The appearance of the whole assemblage is described as having been at once grand and appalling. The red flag floated from the mast-head of every one of the mutineer ships.

The Government, however, though unable at the moment to quell the mutiny by force, remained firm in their demand of “unconditional surrender as a necessary preliminary to any intercourse.” This was, perhaps, the best line of conduct that could have been adopted. The seamen, to their great honour, never seemed to think of assuming an offensive attitude, and were thereby left in quiet to meditate on the dangerous position in which they stood in hostility to their own country. Disunion began to manifest itself, and Parker’s efforts to revive the cooling ardour of the mutineers resulted in rousing particular hostility against himself.

Meanwhile, formidable preparations had been made by the Government for the protection of the coast against a boat attack by the mutineers, and to prevent the fleet advancing up the Thames and menacing London. All the buoys and beacons in the three channels giving entrance to the Thames had been removed. Batteries with furnaces for red-hot shot were constructed at several points. Sheerness was filled with troops, and at more distant places outposts were established to prevent the landing of parties of the mutineers. Two ships of the line, some frigates, and between twenty and thirty gunboats lying higher up the river were fitted out in great haste, to co-operate, in the event of an attack by the mutinous fleet, with the squadron from Spithead, that had been summoned. Alarm and perplexity disorganized the council of the mutineers. The supply of provisions had for some time been running short.

A price had been set on Parker’s head—£500. It was thought that he might attempt to escape, and therefore a description of him was published: “Richard Parker is about thirty years of age, wears his own hair, which is black, untied, though not cropt; about five feet nine or ten inches high; has a rather prominent nose, dark eyes and complexion, and thin visage; is generally slovenly dressed, in a plain blue half-worn coat and a whitish or light coloured waistcoat and half-boots.”

But Parker made no attempt to escape. The mutineering vessels held together till the 30th May, when the Clyde frigate was carried off by a combination of its officers and some of the seamen, and was followed by the S. Fiorenzo. These vessels were fired upon by the mutineers, but escaped up the river. The loss was, however, more than counterbalanced by the arrival of eight ships from the mutinous fleet of Admiral Duncan, anchored in Yarmouth Roads.

On the 4th June, the King’s birthday, the Nore fleet showed that their loyalty to their Sovereign was undisturbed by firing a general salute.

On the 6th June two more ships deserted under the fire of the whole fleet, but the same evening four more arrived from Admiral Duncan’s fleet. On this day Lord Northesk, having been summoned on board the Sandwich, found the council, comprising sixty delegates, sitting in the state cabin, with Parker at its head. After receiving a letter containing proposals of accommodation to which the unfortunate Parker still put his name as president, Lord Northesk left, charged to deliver this letter to the King. The answer was a refusal to all concessions till the mutineers had surrendered unconditionally. Disunion thereupon became more accentuated, and on 10 June, Parker was compelled to shift his flag to the Montague and the council removed with him.