During May 1833, Canada, Toronto. Regiment transferred here by steamer up Lake Ontario. Headquarters at barracks on Lake shore, plus five detachments at out stations
On 21 May 1833, India, Masulipatam. The usual hot winds set in with considerable violence. The admissions into hospital during the next three days were upon an average of fifty a day. The state of the Regiment was reported to the Commander in Chief, Madras and the Commander in Chief, India. The latter gave instructions to have the cause of sickness investigated. There was also fatalities from Apoplexy and sunstroke. Only 44 men were fit for duty. Garrisons guards discontinued, and Regimental guards decreased. Parade of 4 weak divisions and three Officers only. Regiment ordered to Vizagapatam for medical investigation
During June 1834, India, Masulipatam. During the month the rains commenced, which brought on violent attacks of fever and ague. The hospital was crowded, and part of the barracks appropriated for the sick. Deaths from fever and dysentery now averaged seven per day. Another report was made to the Commander-in-Chief in India (Lord William Bentinck). An order directing the removal of the Regiment to Moulmein, and the abolition of Masulipatam as a European station, was immediately issued. The total loss during the stay of the Regiment at Masulipatam (sixteen months) amounted to three officers, 187 Non Commissioned Officers and privates, 26 women and 89 children
On 8 Sept 1834, India, Masulipatam. The Regiment embarked in three divisions on board the 'Swallow' (Headquarters detachment), 'Alexander' and 'Princess' for Moulmein. The divisions disembarked on 16, 17 and 22 September. During the passage seventeen men, two women and five children died. Regiment too sickly to form a burial party.
During Dec 1834, India, Moulmein. Deaths over the past three months from diseases contracted on Madras boat were forty-five men, two women and eleven children
On 18 Nov 1835, India, Moulmein. Draft of recruits from England comprising three Subalterns, 243 Rank and File, nine women and six children.
The health of the Regiment had rapidly improved since its arrival in the Tenasserim Province
During 1836, India, Moulmein. Detachment from England completing Battalion to 698 Rank and File. Several extensive fires took place in the cantonement and neighbouring town, which were extinguished by the activity and promptness of the non commissioned officers and men of the Regiment under orders of the officers
On 10 Apr 1837, Mauritius, Port Louis. 1 and 2 Companies embarked on 'Arab' transport, sailed for Cork on 12 April, arriving there (with Numbers 1 and 2 Companies) on 27 July
On 14 July 1837, Mauritius, Port Louis. Headquarters (Numbers 3, 4, Light and Grenadier Companies) embarked on 'Maitland' transport, arriving at Cork on 4 October and disembarked on 5 October. Service and Reserve Companies re-united at Fermoy on 11 October
On 22 Nov 1837, Canada, Sorel. Colonel Gore on his way to St Denis and St Charles on the Richelieu River, picked up a company of the 66th here. Although the Light Company of the 66th did good work, the attack was a failure as the men were exhausted after the long terrible march