Governor General of Canada
It was announced on 8 August 1916 that King George V had, by commission under the royal sign-manual and signet, approved the recommendation of his British prime minister, H. H. Asquith, to appoint Devonshire as his representative in Canada. The appointment caused political problems, as Canadian Prime Minister Robert Borden had not been consulted on the matter, contrary to practice that had been well established by that time. Borden thus felt insulted, which led to considerable difficulties at the beginning of Devonshire's tenure after he was sworn in on 11 November 1916 during a ceremony held in Halifax.
In that era, there was social unrest in the country. The women's suffrage movement gaining momentum in Canada, calls were coming out of the prairies for socialist changes to the governmental system and war continued to rage around the world. Canada was providing troops and supplies, and shortly after his installation, acting on the advice of Borden, Devonshire introduced conscription, a decision that was particularly divisive between French and English Canadians and sparked the Conscription Crisis of 1917. The same year, he also travelled to Nova Scotia to survey the damage caused by the Halifax Explosion on 6 December. There, he met with survivors and addressed the women of the Voluntary Aid Detachment.
The Canadian victory in 1917 at the Battle of Vimy Ridge, however, helped fuel Canadian pride and nationalism at home, and the Governor General, while conscious of his role's remaining connection to the British government, used the victory positively and publicly to encourage reconciliation between Canada's two main linguistic groups. At all times, Devonshire was careful to consult with his prime minister and the leaders of His Majesty's Loyal Opposition in Canada on matters related to conscription and the war effort.
Devonshire took an active interest in the lives of Canadians and conducted various tours of the country to meet with them. As a landowner himself, the Governor General was particularly focused on the development of farming in Canada and during his travels. At agricultural and horticultural fairs, shows, and sugaring-off parties in Gatineau, he discussed agricultural issues with farmers and other people in the industry. His speeches often referred to Canada's potential to lead the world in agricultural research and development, and one of his major projects as viceroy was establishing experimental farms, including the Crown's central one in Ottawa. At the same time, Devonshire acted as a patron of the arts.
When not on tour or residing at La Citadelle, the viceregal residence in Quebec City at which the Duke enjoyed spending time, he frequently visited the National Gallery and hosted theatrical performances at Rideau Hall. There, on the grounds of the royal residence, during the winters, the Devonshires also hosted tobogganing and skating parties, as well as hockey matches. Officially, in 1918 Devonshire travelled to the United States to meet President Woodrow Wilson informally, and the following year, he was host to Prince Edward, Prince of Wales, during his first tour of Canada.
By the end of his tenure as Governor General, Devonshire had overcome all of the initial suspicions that had surrounded his appointment, and both men who served as his Canadian prime minister, Borden and Arthur Meighen, came to view him as a personal friend of them and also of Canada. The former said of Devonshire: "No Governor General has come with a more comprehensive grasp of public questions as they touch not only this country and the United Kingdom, but the whole Empire". The Duke left as a mark of his time in Canada the Devonshire Cup, for the annual golf competition of the Canadian Seniors Golf Association, and the Duke of Devonshire Trophy, for the Ottawa Horticultural Society. While in Canada, Devonshire's two aides-de-camp married his daughters.