The 103rd Regiment was an infantry regiment

Regiment

A regiment is a major tactical military unit, composed of variable numbers of batteries, squadrons or battalions, commanded by a colonel or lieutenant colonel...

 of the Canadian non-permanent militia, organized at Calgary

Calgary

Calgary is a city in the Province of Alberta, Canada. It is located in the south of the province, in an area of foothills and prairie, approximately east of the front ranges of the Canadian Rockies...

, Alberta

Alberta

Alberta is a province of Canada. It had an estimated population of 3.7 million in 2010 making it the most populous of Canada's three prairie provinces...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, by General Order on 1 April 1910.

History

The 103rd Regiment was raised in Calgary as a militia unit. The first commanding officer was Lieutenant-Colonel W.C.G. Armstrong. The regiment's 1st Battalion consisted of eight companies stationed in Calgary. At the outbreak of World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 the regiment served as a recruiting depot to raise battalions for the Canadian Expeditionary Force

Canadian Expeditionary Force

The Canadian Expeditionary Force was the designation of the field force created by Canada for service overseas in the First World War. Units of the C.E.F. were divided into field formation in France, where they were organized first into separate divisions and later joined together into a single...

 (CEF), the first being the 10th Battalion, CEF

10th Battalion, CEF

The 10th Battalion, Canadian Expeditionary Force was a Canadian field force unit created during the First World War. Technically distinct from the Militia from which its soldiers were drawn the unit served in the Canadian Expeditionary Force , specifically in the 1st Canadian Division from 1914 to...

. The 103rd Regiment was reorganized into two regiments in 1920 (the Calgary Regiment and the Alberta Regiment), each of which was reorganized into two regiments a few years later. One of the resulting four regiments (the North Alberta Regiment) was disbanded in the 1936 reorganization of the Militia, but three present-day regiments claim descent from the 103rd: the South Alberta Light Horse, the King's Own Calgary Regiment (RCAC) and the Calgary Highlanders.

Descendants of the 103rd Regiment "Calgary Rifles"

1910		103rd Regt "Calgary Rifles"
1920	1st Bn, The Calgary Regt	2nd Bn, The Calgary Regt	The Alberta Regt
1921	1st Bn, Calgary Highlanders, The Calgary Regt		1st Bn, The Alberta Regt	2nd Bn, The Alberta Regt
1924	The Calgary Highlanders	The Calgary Regt	The South Alberta Regt South Alberta Regiment The South Alberta Regiment was a Canadian infantry regiment which served in the Second World War. The unit was created in 1924 and mobilized in 1940 as part of the 4th Canadian Infantry Division...	The North Alberta Regt
1936				Disbanded
	The Calgary Highlanders The Calgary Highlanders The Calgary Highlanders is a Canadian Forces Land Force Primary Reserve infantry regiment, headquartered at Mewata Armouries in Calgary, Alberta, Canada...	The King's Own Calgary Regt (RCAC)	The South Alberta Light Horse The South Alberta Light Horse The South Alberta Light Horse, or SALH, is an armoured reconnaissance unit of the Canadian Forces Army Reserve based in Medicine Hat and Edmonton, Alberta...