David Ross McCord was born on March 18, 1844, in Montreal, Quebec.

He was a Canadian lawyer, alderman, and museum founder. His father John Samuel McCord (1801–1865), Judge of the Supreme Court, and his mother Anne Ross (1807-1870), an accomplished watercolour artist, instilled a love of science and art in their children, provided them with a classical education, and insisted that they learn to speak French. McCord studied law at McGill University (B.A.,1863; M.A., L.L.D., 1867) and was called to the bar in 1868, eventually becoming a magistrate who gained fame by intervening on behalf of the Aboriginal peoples in Canada. In 1878, he proposed the establishment of a national museum for Canadian history in his maternal city, and in 1921, the McCord Museum opened its doors with a collection of 15,000 artifacts from his personal collections related to Aboriginal, French, and British history in North America. In 1895, he was named a Queen's Counsel.

In 1878, he married Letitia Caroline Chambers (1834–1928). He died on April 12, 1930, in Guelph, Ontario.

Hugh McConvill was a farmer born in Ireland in approximately 1786. He purchased land from the Hall family in Hinchinbrooke, Quebec, in the 1840s. He lived there with his wife, Jane Duffy, and their children, Charles, Catherine, James. He died on 28 May 1867.

Richard George McConnell was born on March 26, 1857, in Chatham, Canada East (now Quebec).

He was a geologist, explorer, and civil servant. He studied at McGill University and joined the Geological Survey of Canada in 1879. For some 30 years, he studied geological phenomena in Canada, particularly in the west and northwest. In 1882, he assisted George Mercer Dawson in exploring the southern Alberta Rockies as well as the Waterton Lakes region, St. Mary River, and Cypress Hills. He explored a large portion of northern BC, the Mackenzie Valley, and the Yukon Territory. In 1889-1890, he conducted an extensive study of the Athabasca tar sands of northeastern Alberta and explored the Peace-Athabasca region. In 1914, he became federal Deputy Minister of Mines, retiring in 1921. He was elected a fellow of the Royal Society of Canada in 1913.

In 1898, he married Jean (Jeannie) Jessica Turner Botterell (1870–1939). He died on April 1, 1842, in Ottawa, Ontario.

John Wilson McConnell was born in Muskoka, Ontario 01 July 1877 to John McConnell and Margaret Anne (née Wilson) McConnell, both immigrants to Canada of Ulster-Scots origin. McConnell spent his childhood and early teenage years helping on the family farm until around 1891; at which point he moved to Toronto to join an older sister already living in that growing city. The remainder of McConnell’s siblings and his parents soon followed to Toronto around 1894. John Wilson McConnell died November 6, 1963 after a lengthy battle with leukaemia.

J.B. Mcconnell was a physician, surgeon, and accoucheur, and a lecturer in physical diagnosis at the Medical Faculty of Bishop College, Quebec.