W. Howard Measures was born on October 16, 1894. “Howard Measures, public servant, was secretary to two Prime Ministers, R.B. Bennett and W.L. Mackenzie King. He originated Canada's diplomatic protocol service and was Chief of Protocol, Department of External Affairs and Director, Protocol Branch, Department of the Secretary of State.” (From Library and Archives Canada) He died on March 14, 1985.

Thomas Baker McQuesten was born June 30, 1882 in Cambridge, Ontario. He was a Liberal politician representing Hamilton in the Ontario Provincial Legislature from 1934 until 1943, serving as Minister of Public Works and Highways from 1934 to 1943, Minister of Mines in 1940 and Minister of Municipal Affairs from 1940 to 1943. He served on the Hamilton Board of Park Management from 1934-1948, and was involved in the creation of the Royal Botanical Gardens. He also served as chair of the Niagara Parks Commission. He died on January 13, 1948.

John McQueen was born February 20, 1827 to James McQueen and Helen McFarlane. He married Janet Sims on December 26, 1856 in Hawkesville, Ontario and died September 17, 1905 in Hillman, Michigan.

Janet Sims was born March 1, 1838 to James Sims and Janet Harvey Sims shortly after the family's arrival in Canada. She married John McQueen on December 26, 1856 in Hawkesville, Ontario and died in Hillman, Michigan on June 3, 1926.

Canadian poet Alexander McNeill was born at The Corran, Ireland on May 10, 1842. In 1872 McNeill and his wife Hester moved to Canada, settling first in Elderslie township before building a home "The Corran" near Wiarton. A practising lawyer, he was elected to the Canadian House of Commons for the first time in 1882 and continued to serve until 1901. McNeill died April 18, 1932.

Robert Angus McLaren was born July 28, 1895. He was the longest-serving superintendent of Rondeau Provincial Park, Ontario, holding that position from 1934 until 1963. He died on January 27, 1972.

Leonard S. McLaine was born June 27, 1887 in Manchester, England. After his education in the United States he worked for the Division of Entomology, Department of Agriculture, Canada. On July 16, 1942, he was appointed Dominion Entomologist and Assistant Director of Science Service. He died July 20, 1943.

Donald McKay was a fur trader who spent much of his life in the Timiskaming district of what is today northern Ontario and Quebec. Born to Scottish immigrants near or around Montreal he had several siblings, including Angus and Neil who also worked in the fur trade. When the Hudson's Bay Company post Frederick House was established in 1785, McKay who was then a clerk, was master of Canadian house, Langue de Terre, on Lake Mistinikon. By 1794 he had a post on Matawagamingue, today Mattagami, that served as the base for the area and he established the Flying Post on Groundhog Lake, which was in operation in 1800. From 1804 to 1806 McKay was in charge of the depot at Fort Timiskaming before relocating to Abitibi for a short time. He returned to Fort Timiskaming in 1806 and remained there as master until his death on June 9, 1820. Two of McKay's sons, Donald John and John, worked in the fur trade as well, serving as clerks in the Timiskaming district for the North West and Hudson's Bay companies.

Jerome McGann is an American textual scholar who specializes in the history of literature and culture in the late eighteenth century to the present.

Zella Rose Dexter McDonald was born July 9, 1882 in Wentworth, Ontario to David Dexter and Isabella (McLachlin). She married Charles Campbell McDonald June 29, 1909 in Hamilton, with Ella Anthes acting as a witness.