The mob had been divided from its first assemblage into four divisions; the London, the Westminster, the Southwark, and the Scotch.

Each of these divisions being subdivided into various bodies, and these bodies being drawn up in various forms and figures, the general arrangement was, except to the few chiefs and leaders, as unintelligible as the plan of a great battle to the meanest soldier in the field.

It was not without its method, however; for, in a very short space of time after being put in motion, the crowd had resolved itself into three great parties, and were prepared, as had been arranged, to cross the river by different bridges, and make for the House of Commons in separate detachments.
At the head of that division which had Westminster Bridge for its approach to the scene of action, Lord George Gordon took his post; with Gashford at his right hand, and sundry ruffians, of most unpromising appearance, forming a kind of staff about him.

The conduct of a second party, whose route lay by Blackfriars, was entrusted to a committee of management, including perhaps a dozen men: while the third, which was to go by London Bridge, and through the main streets, in order that their numbers and their serious intentions might be the better known and appreciated by the citizens, were led by Simon Tappertit (assisted by a few subalterns, selected from the Brotherhood of United Bulldogs), Dennis the hangman, Hugh, and some others.
The word of command being given, each of these great bodies took the road assigned to it, and departed on its way, in perfect order and profound silence.

That which went through the City greatly exceeded the others in number, and was of such prodigious extent that when the rear began to move, the front was nearly four miles in advance, notwithstanding that the men marched three abreast and followed very close upon each other.
At the head of this party, in the place where Hugh, in the madness of his humour, had stationed him, and walking between that dangerous companion and the hangman, went Barnaby; as many a man among the thousands who looked on that day afterwards remembered well.