John George MacKay was a farmer and political figure on Prince Edward Island

Prince Edward Island

Prince Edward Island is a Canadian province consisting of an island of the same name, as well as other islands. The maritime province is the smallest in the nation in both land area and population...

. He represented 4th Prince

4th Prince

4th Prince was an electoral district in the Canadian province of Prince Edward Island, which elected two members to the Legislative Assembly of Prince Edward Island from 1873 to 1993....

 in the Legislative Assembly of Prince Edward Island

Legislative Assembly of Prince Edward Island

The Legislative Assembly of Prince Edward Island, along with the Lieutenant-Governor, forms the parliament of the province. The General Assembly meets at Province House, which is located at the intersection of Richmond and Great George Streets in Charlottetown....

 from 1949 to 1966 as a Liberal

Prince Edward Island Liberal Party

The Prince Edward Island Liberal Party is a major political party in the province of Prince Edward Island, Canada. The PEI Liberals are aligned with the federal Liberal Party of Canada. The party is led by Robert Ghiz, a former member of the staff of the Prime Minister's Office under Prime Minister...

. MacKay was the 20th Lieutenant Governor of Prince Edward Island

Lieutenant Governor of Prince Edward Island

The Lieutenant Governor of Prince Edward Island is the viceregal representative in Prince Edward Island of the Canadian monarch, Queen Elizabeth II, who operates distinctly within the province but is also shared equally with the ten other jurisdictions of Canada and resides predominantly in her...

, serving from October 6, 1969 to October 24, 1974.

He was born in Albany, Prince Edward Island, the son of David MacKay and Almira Harvey, and was educated there. MacKay married Muriel Beatrice in 1918. He was president of the Tryon Dairying Company and the Tryon Farmers' Institute and also served as a director of the Swine Breeders' Association. MacKay served in the Canadian Army during 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...

. He was a member of the provincial cabinet as a minister without portfolio

Minister without Portfolio

A minister without portfolio is either a government minister with no specific responsibilities or a minister that does not head a particular ministry...

 in 1952 and as Minister of Highways from 1955 to 1959. MacKay died in office at the Prince Edward Island Hospital

Prince Edward Island Hospital

The Prince Edward Island Hospital is a former acute care hospital that was located in Charlottetown, Prince Edward Island. It was the first public general hospital established in the province and the largest such facility throughout its history....

in Charlottetown at the age of 80.