Sir Isaac Brock was succeeded in his civil and military commands in Upper Canada by Major-General Sheaffe, who was created a baronet for the dearly bought victory of Queenstown.

After the battle, he paroled General Wadsworth and some of the principal American officers, the remainder proceeding to Quebec.

Among the prisoners, 23 were found to be deserters from English regiments, and British born subjects; and they were sent to England for trial as traitors.

This caused a retaliation upon British prisoners in the United States, and an equal number were put by the American government into close confinement as hostages for the security of the traitors.
On the 18th of October, General Smyth assumed the command at Niagara, and applied to the British general for an armistice; and notwithstanding the well-known prejudicial effect of the former one proposed by Sir George Prevost, it was agreed to by Major-General Sheaffe![118] This unaccountable proceeding, as might easily have been foreseen, proved of material detriment to the British on Lake Erie, as the Americans availed themselves of so favorable an occasion to forward their naval stores unmolested from Black Rock to Presqu'ile by water, which they could not otherwise have effected, but with immense trouble and expense by land, and equipped at leisure the fleet which afterwards wrested from us the command of that lake.

When the enemy was prepared for a third invasion of Upper Canada, General Smyth did not fail to give the thirty hours notice required for the cessation of the armistice, which terminated on the 20th of November.
"After the surrender of Detroit," said the inhabitants of Niagara in their spirited letter to Sir George Prevost, already quoted (page 279), "the enemy were suffered unmolested to concentrate a large force on the Niagara, at Sackett's Harbour on Lake Ontario, and at Ogdensburg on the St.Lawrence; they were not interrupted in bringing forward to these places a large quantity of field and heavy artillery, with the requisite supplies of ammunition, and in equipping a flotilla, to dispute with us the superiority of the lakes.