Rev. John McNaughton McKillican was born on May 24, 1824, in Vankleek Hill, County Glengarry, Ontario.

He was a clergyman. He was educated at the Congregational College in Toronto. In 1850, he was called to Glengarry Congregational Church, established in 1823 by his father William McKillican (1776-1849). He was ordained here in 1851. As secretary and travelling agent for the Sunday School Union in Montreal, he became well known throughout Quebec and the Maritime Provinces. He organized over 1,200 Sunday schools with 6,000 teachers and over 40,000 scholars. He visited ever 8,500 schools and delivered over 41,000 sermons and addresses. McKillican was a great temperance advocate and a member of the executive of the Dominion Alliance for the Total Suppression of the Liquor Traffic.

In 1854, he married Miranda Louisa Parker (1833–1920). He died on June 27, 1911, in Montreal, Quebec.

Roderick McKenzie, a cousin of Sir Alexander McKenzie, came to Canada from Scotland in 1784 and entered the service of the Montréal fur-trading firm of Gregory, McTavish and Co. He accompanied his cousin to the West in 1786, built the original Fort Chipewyan in 1788, and was in charge of the post during Alexander McKenzie's expeditions to the Arctic in 1789 and to the Pacific in 1792. In 1800 McKenzie became a partner in the North West Company. A year or two later he retired from active fur trading, but he continued to be a dormant partner in the firm of McTavish, Frobisher and Co. (later McTavish, McGillivrays and Co.) until its failure in 1825. In his later years he gathered material for a history of the North West Co., which he never completed. He served on the Legislative Council of Lower Canada from 1817 to 1838.

Dr. Robert Tait McKenzie or MacKenzie was born on May 26, 1867, in Ramsay, Ontario.

He was a physician, sculptor, educator, athlete, soldier, and Scouter. He attended McGill University in Montreal as an undergraduate and medical student. He won the All-round Gymnastic Championship, was the Canadian Intercollegiate Champion in the high jump, a good hurdler, a first-rate boxer, and a member of the varsity football team. In 1892, he graduated from McGill and got an internship at Montreal General Hospital. A year later he became an instructor in anatomy and specialist in orthopedic surgery at McGill and also developed an active medical practice in Montreal where he was appointed house physician to the Governor-General of Canada, the Marquis of Aberdeen. During the 1890s, McKenzie asked McGill to develop a department and school of physical education, but the university declined, citing lack of money. In 1904, he moved to the United States to teach at the University of Pennsylvania in Philadelphia. He also became its director of physical education.

He pioneered physical fitness programs in Canada. During World War I, his methods and inventions for restoring and rehabilitating wounded soldiers laid a foundation for modern physiotherapy practices. He attained fame in the medical world by his original ideas on the treatment of scoliosis and by his conviction of the need for preventive medicine.

His interest in sculpting was a result of his extensive knowledge of human anatomy. He sculptured memorials and statues of athletes.

He died on April 28, 1938, in Philadelphia, Pennsylvania.

James McKenzie was born around 1777 near Inverness, Scotland, and died in 1849 in Quebec. His parents were Alexander Mackenzie of Achnaclerach and Catherine Mackenzie, and he was the brother of Roderick Mackenzie. In 1795, McKenzie began a seven-year apprenticeship with the North West Company under his brother Roderick in the Athabasca department. He had two sons with an unknown Indigenous woman near Terrebonne, Quebec, and in 1825, married Ellen Fitzsimmons, the under-aged daughter of Captain Thomas Fitzsimmons. They had seven children. McKenzie kept journals in Fort Chipewyan (Alberta) dated from 1799 and 1800, which illuminated the harshness of life in the fur trade and his contempt for Canadians, Indigenous peoples, and the North West Company. McKenzie physically abused members of the New North West Company (also known as the XY Company), sold Indigenous women to engagés, provided Indigenous peoples with bad tobacco and watered-down rum, and rewarded rather than punished a hunter responsible for the death of an engagé. Promoted partner in 1802, McKenzie was reassigned to the Athabasca country, where he constructed a “watch house” near the Hudson’s Bay Company’s post and ordered the destruction of the company’s property. Along with this, he debauched Indigenous peoples, plundered furs, and harassed workers of the Hudson’s Bay Company. McKenzie’s actions provoked some Chipewyan people into killing six North West Company workers that harassed them. Following the amalgamation of the two North West companies in 1804, McKenzie’s harassment intensified, causing the withdrawal of the Hudson’s Bay Company from the area in 1806. In 1807, McKenzie joined the Beaver Club in Montreal and soon after was appointed to the king’s post in Mingan, Quebec. McKenzie ventured up the Labrador coast to Musquaro, where he met the Naskapi peoples. In 1811, he bought a house near Terrebonne, Quebec, which facilitated visits to his brothers Roderick and Henry, and to his two sons with the unknown Indigenous woman. In 1815, he assisted John McDonald of Garth in dispossessing around four-hundred voyageurs of the Hudson’s Bay Company of their local tavern. McKenzie left the North West Company in 1818 to become an independent merchant at Tadoussac and Quebec. He was commissioned as a justice of the peace in 1821 and was believed to have settled in Quebec City.