The Argyll and Sutherland Highlanders of Canada (Princess Louise's), or is a Primary Reserve Highland infantry regiment of the Canadian Armed Forces, based at John W. Foote VC Armoury in Hamilton, Ontario. The regiment is part of 2nd Canadian Division's 31 Canadian Brigade Group. The regiment was formed in 1903 as "91st 'Highlanders, and since 1920 "Princess Louise's" has been part of the regimental title, for Princess Louise, Duchess of Argyll. On 24 May 2026 the regiment formed a tactical grouping with the Royal Hamilton Light Infantry (Wentworth Regiment) as part of the Canadian Army modernization.

Badge "A torteau charged with a leopard's face Or and environed by a wreath of thistles proper, overall an annulus Azure edged and inscribed ARGYLL AND SUTHERLAND and CANADA in letters Or surmounted in chief by the Royal Crown proper and in base by two scrolls Azure edged and inscribed ALBAINN and GU-BRATH in letters Or."

Foundations The idea for a full Highland regiment in Hamilton first took shape among the members of the St. Andrew's Society (of which James Chisholm was the long-time treasurer) and the Sons of Scotland (of which, he was also a member). Late in 1902 meetings were held and prominent members of the city's Highland-Canadian community were asked to "take hold of the matter."

James Chisholm and his partner, William Alexander Logie (a captain in the XIII Regiment), took a leading role in organizing locally and in lobbying Ottawa. With the support of local Scottish organizations and clan societies, a deputation was sent to Ottawa bearing a petition to the minister of Militia. The minister, Frederick Borden, was less than enthusiastic about the potential cost and the Highland character of the proposed unit (he wanted the militia in a common uniform). Col. W. D. Otter, whom Logie canvassed for his opinion, was skeptical of the group's ability to "get either the officers or the men and if we got both [of] these we could not get the money …"

Hamilton's Scottish-Canadian elite moved quickly to fill the ranks of the officer corps and to raise the necessary funds to outfit the regiment in full Highland dress. Those who came forward included: Chisholm, Logie, J. R. Moodie, Walter W. Stewart, E. M. Dalley, Roy Moodie, E. F. Lazier, John Inglis McLaren, and many others from all walks of professional and business life.

A draft letter written by either Chisholm or Logie to local MPs noted that the proposed "officers are a fine lot of fellows and of good standing and large influence in the community." The group obtained (as of 25 March 1903) over 700 names for the rank and file. The "men are a particularly fine class drawn chiefly from the better class of Scotchmen who own their own homes and have a stake in the community." Chisholm and Logie were well-connected within the Liberal Party and maintained steady pressure upon local politicians to forward the group's cause. Chisholm monitored all communications with Borden. When the minister curtly informed a local lawyer to forward his support of the proposed Highland regiment "through the regular official channel," Chisholm promptly asked the minister of Militia for an explanation particularly as Borden had already written to Chisholm indicating that a Highland regiment would be raised. Borden denied having done so but by 17 August 1903 he reported (confidentially to Logie) authorizing the establishment of a Highland regiment. Chisholm, Logie, and the Scottish community were unrelenting and in the end won the day.

The regiment was formed on 13 September 1903 and gazetted three days later as the 91st Regiment Canadian Highlanders.

Regimental history

Early days In winning the day, Chisholm and Logie used every reasonable tactic at hand. They were particularly adept at putting pressure at the highest possible level, usually the minister, thus circumventing the normal channels of the Department of Militia and Defence. They continued this newly established tradition after the regiment was formed. When they wrote to the minister in 1904 concerning an account of $9.55 for plumbing in the officers' quarters, an exasperated senior aide wrote to Logie suggesting that "your Regiment should come into line . . . ." He went on to say, "It would be simply impossible to run this Department if other Regiments went about these matters as yours does." Nothing, however, changed. When in 1906 the Department of Customs insisted upon charging duty upon a snuff mull sent to the 91st by the British Argylls, Logie and Chisholm appealed to Chisholm's friend, Adam Zimmerman, MP, who took up their case with the Assistant Commissioner of Customs. A compromise was eventually reached.

Chisholm began his service with the 91st on 16 September 1903 as its paymaster holding the rank of honorary captain. For the rest of his life, the regiment was a major part of his life. Logie served as the regiment's first commanding officer until 1911 so for a time Chisholm and Logie's office on James Street was an alternate battalion headquarters. Two evenings a week, Chisholm could be found at the James Street Armouries – the 91st was quartered in the recently built addition (designed in part by his architect brother-in-law Walter Wilson Stewart, also a member of the 91st). As well as the matters of weekly administration, there was an endless round of ceremonial functions and Chisholm took (and maintained) a particular interest in the Pipe Band. Finally, the 91st provided a rich social life in the elegant officers' mess, whether the normal course of socializing after weekly parades, full mess dinners, special functions, balls, or the annual celebration of Hogmanay.

In 1904, when Douglas Cochrane, 12th Earl of Dundonald was still a General Officer Commanding the Militia of Canada, he was appointed an honorary colonel of the 91st Highlanders division, a title he held briefly before he was dismissed on the same year, which the dominion cabinet described as "Indiscretion and insubordination". Douglas became angry and argued with ministers at a dinner at Montreal, an argument which Douglas alleged that; ".. important parts of his reports for 1902 and 1903 were wrongfully suppressed by the minister of militia, contrary to his wishes. Sir Frederick Borden is charged by Lord Dundonald with falsehood in the house of commons. He declares the militia has been greatly neglected and lacks all that is necessary to make it efficient..".The Boston Record - 20 June 1904The Gazette Montreal, Friday, January 29, 1904 (Page 10)

The Great War

During the First World War, the regiment acted as a training unit providing 145 officers and 5,207 other ranks for service in the numbered battalions of the C.E.F., especially the 16th, 19th, and the 173rd Highlanders. The latter was broken up for reinforcements, much to the chagrin of its men. Although the Argylls perpetuate both the 19th and the 173rd, it is the former which provides the regiment its most intimate connection with the Great War. The 91st gave the 19th all four of its commanding officers and its Pipe Major, Charles Davidson Dunbar, DCM, a Pipe Major of international renown.

As part of the 4th Infantry Brigade, 2nd Division, the 19th went from the mud and misery of Salisbury Plain, England, to the mud and blood of Flanders. The battalion saw its first action at Saint-Eloi in April 1916 and went on to serve on the Somme, at Courcelette, Vimy Ridge, Hill 70, Passchendaele, Drocourt-Quéant, and the Pursuit to Mons. In December 1918, its pipe Band played a victorious Canadian Corps across the Rhine and into Germany. The 19th has no official history published, however in 2016, a detailed history was published in the book “It Can't Last Forever – The 19th Battalion and the Canadian Corps in the First World War”, by David Campbell.

The 19th Battalion (Central Ontario), CEF was authorized on 7 November 1914 and embarked for Great Britain on 13 May 1915. It disembarked in France on 15 September 1915, where it fought as part of the 4th Infantry Brigade, 2nd Canadian Division in France and Flanders until the end of the war and disbanded on 15 September 1920.Canadian Forces Publication A-DH-267-003 Insignia and Lineages of the Canadian Forces. Volume 3: Combat Arms Regiments.

The 173rd Battalion (Canadian Highlanders), CEF was authorized on 15 July 1916 and embarked for Great Britain on 14 November 1916. It provided reinforcements for the Canadian Corps until 4 January 1917, when its personnel were absorbed by the 2nd Reserve Battalion, CEF. The battalion disbanded on 1 September 1917. The 173rd Battalion was awarded the battle honour .Over the Top!: Canadian Infantry in the First World War, John F. Meek 1971, Orangeville, Ontario,

The 3rd Battalion, CMGC, CEF, was formed in France on 23 March 1918 from the machine gun companies of the 3rd Canadian Division, the 7th Machine Gun Company, 8th Machine Gun Company, 9th Machine Gun Company and later the 15th Machine Gun Company. It provided machine gun support to the 3rd Canadian Division in France and Flanders until the end of the war and disbanded on 15 November 1920.

Victoria Cross recipient Lt. Hugh McKenzie, who had risen from Private to Company Sergeant-Major in Princess Patricia's Canadian Light Infantry before accepting his commission and transferring to the Canadian Machine Gun Corps, was awarded the Victoria Cross posthumously for his actions during Passchendaele. He had already won the Empire's second-highest award for gallantry, the Distinguished Conduct Medal as well as the French Croix de Guerre with the PPCLI. On 30 October 1917, he was a member of the 7th Canadian Machine Gun Company, Canadian Machine Gun Corps, leading a section of four machine guns. Seeing that one of the PPCLI companies was hesitating to advance in the face of a German machine gun position on dominating ground, he handed command of his troops to an NCO and went to rally the men of his old regiment. Lt. McKenzie organized an attack and captured the enemy position. Once on the position, however, he realized that it was itself under dominating enemy machine gun fire from a nearby pillbox. Lt. McKenzie organized parties to capture the pillbox by making both frontal and flanking attacks. He was killed while leading the frontal attack. When the awarding of his Victoria Cross was announced in the London Gazette on 12 February 1918, his surname was misspelled as "Mackenzie."The London Gazette no.30523, 13 February 1918 http://www.london-gazette.co.uk/issues/30523/supplements/2003 accessed 19 November 2013.

Inter-war years The regiment went through the inter-war years, endured the general militia reorganizations, and prospered. Not only was it large in numbers, (rarely below 400, at times exceeding 600) it benefited from a considerable cadre of First War veterans of all ranks. Tradition continued to play a pre-eminent role and the regiment enjoyed a visible civic profile through weekly parades on the streets, a close attachment to the city's elite, and the activities of three highly active bands (pipe — still under Dunbar, brass, and bugle).

The Second World War

Details from the regiment were called out on service before the actual start of the war on 26 August 1939 and placed on active service on 1 September 1939 as The Argyll and Sutherland Highlanders (Princess Louise's) (Machine Gun), CASF (Details), for local protection duties.