Some references to the Rifle Brigade in the Toronto newspaper The Globe gives a timeline to where they were over time.
February 3, 1849:
DIED
In this City, on the evening of 31st January 1849, second Lieut. C.E. Bott, second battalion Rifle Brigade.
September 1, 1849:
References the murder of a man -- both parties were privates in the Rifle Brigade.
November 27, 1849:
The three companies of the Rifle Brigade at Fort Henry are ordered immediately for Toronto.
December 4, 1849:
Our garrison yesterday received an addition of three companies of the Rifle Brigade. They came from Kingston in the Princess Royal.
February 1850: Reserve battalion in Quebec City and posted to St. John
May 28, 1850: Desertion of six men from the Rifle Brigade (from the Kingston News)
October 19, 1850:
Yesterday morning, the company of the Rifle Brigade, that went to Mica Bay about 12 months ago under the command of Captain Cooper, to quell the threatened disturbance of the Indians, marched along King Street on their way to the garrison.
July 17, 1852:
H.M.S.V. Simeon with the Rifle Brigade on board arrived at Portsmouth on the 25th ult. after a voyage of three weeks and a day from Quebec.
December 2, 1852:
List of army stations shows 1st battalion of the Rifle Brigades at the Cape of Good Hope on October 27, 1852.
March 9, 1854:
From the Kingston Herald: Col. Young inspected the Rifle Brigade in Tete de Ponts Barracks in order to report the number of men to the British Government fit for active services.
March 13, 1854:
The first division of the British force of 10,000 men which had sailed for Mediterranean stations preparatory to being transferred to the seat of war in the east consists of the following regiments ... 20th Battalion Rifle Brigade.
April 10, 1854: 3rd Battalion of the Rifle Brigades listed as being part of troops sent to join the war
May 8, 1854: references some of the Rifle Brigade being at Gallipoli.
August 1854: reference to Rifle Brigade being at Varna.
October 28, 1854: lists the fatalities and wounded by rank (but not name) for the Battle of the Alma