In order to give increased ventilation in the barracks, as well as to relieve the attention of the soldiers, a large detachment, chiefly of married men, was sent to La Prairie to occupy an old cavalry barrack there; but this step proved fatal to many of them. It was shortly after determined to remove the whole regiment to the Island of St. Helen's, opposite to the city, where the men were encamped. Thirty-seven men died of this scourge between the 12th and 24th of June, 1832, but not a single case occurred after the regiment was placed under canvass. Lieut.-Colonel Macintosh proceeded to England, and did not again rejoin the regiment, having exchanged to half-pay with Lieut.-Colonel G. W. Horton.
1833
The regiment was moved to Kingston, Upper Canada, in the spring of this year, where it had been stationed on first arriving in the colony, detaching one company to Brockville in aid of the civil power, and a company to Cornwall, where some public works were in course of construction.
1834
The Fifteenth moved this year to Toronto, the seat of Government in Upper Canada, detaching one company to Fort George and another to Amherstburg, frontier posts; and a subaltern's party proceeded to Penetanquishene, the most advanced military post on Lake Huron. The Canadas were again visited this year by the Asiatic cholera; the regiment, however, did not suffer in the least.
1835
Lieut.-Colonel G. W. Horton, from the half-pay, vice Macintosh, assumed the command of the regiment.
1836
During the year 1836 the detachments at Fort George and Amherstburg, were relieved by companies from head quarters.
1837