Charles Herbert Best, physiologist, co-discoverer of insulin (b at West Pembroke, Maine 27 Feb 1899; d at Toronto 31 Mar 1978).

Born in London of Welsh parents, David Thompson was an outsider, struggling to find a foothold in the empire that had consumed his country. He described himself as “a solitary traveler, unknown to the world.

Chris Austin Hadfield, Canadian astronaut, military test pilot (born 29 August 1959 in Sarnia, ON). After a distinguished career as a test pilot, Hadfield became an astronaut in 1992.

Earle Willard McHenry, "Mac," professor, scientist, author (b at Streetsville, Ont 25 Jan 1899; d at Toronto 20 Dec 1961).

Frank Lucius Packard, novelist, short story writer, engineer (born at Montréal, Que., 2 Feb 1877; died at Lachine, Que., 17 Feb 1942).

David Takayoshi Suzuki, CC, geneticist, broadcaster, environmental activist (born 24 March 1936 in Vancouver, BC).

Douglas Humphreys Pimlott, conservationist, wildlife biologist, ecologist, environmentalist (born 4 January 1920 in Quyon, QC; died 31 July 1978 in Richmond Hill, ON). A founder of the modern environmental movement in Canada.

John Seaman Bates, chemist, environmentalist (b at Woodstock, Ont 9 June 1888; d at Sackville, NB 26 Nov 1991). A graduate of Acadia U, in 1914 Bates obtained the first PhD in chemical engineering granted by Columbia U.

Roberta Lynn Bondar, astronaut, physician, educator, photographer (born at Sault Ste Marie, Ont 4 Dec 1945). Bondar was the second Canadian astronaut in space, flying aboard the American space shuttle Discovery on Mission STS-42, 22-30 January 1992.

As a naval officer with the Canadian Forces, Garneau spent 10 years as a combat systems engineer, during which time he designed a simulator for training officers in the use of missile systems aboard Tribal-class destroyers.

Stephen Glenwood MacLean, physicist, astronaut (b at Ottawa 14 Dec 1954). MacLean entered the Canadian Astronaut Program in December 1983 after earning his doctorate in physics from York University.

She gained experience in computer research activities, particularly in natural language processing, automatic speech recognition, and the application of interactive technologies in space.

Catharine Parr Traill, née Strickland, pioneer writer, botanist (b at London, Eng 9 Jan 1802; d at Lakefield, Ont 29 Aug 1899). In 1832 Traill immigrated to Canada with her husband, half-pay Lieutenant Thomas Traill, and settled on the Otonabee River near Peterborough, next door to her sister Susanna Moodie.

Frère Marie-Victorin (born Conrad Kirouac), member of the Brothers of the Christian Schools, botanist, teacher (born 3 April 1885 in Kingsey Falls, QC; died 15 July 1944 in St-Hyacinthe, QC).

David Suzuki was there to explain to Canadians the grand ambitions of the early space program and our Anik satellites.

On the afternoon of Tuesday, Oct. 9, emergency crews raced to the provincial cabinet offices on the Vancouver waterfront after a receptionist's hands were left tingling from a suspicious powder in a piece of mail.

Sir Sandford Fleming, civil engineer (b at Kirkcaldy, Scot 7 Jan 1827; d at Halifax 22 July 1915).

The view from a million feet away, his love for two frozen nations—and his fear of heights

Adrien Pouliot, engineer and mathematician (b at Saint-Jean, Île d'Orléans 4 Jan 1896: d at Québec City 1980). After completing his cours classique at the Séminaire de Québec, he entered the École Polytechnique de Montréal earning a BA in applied science in 1915.

Har Gobind Khorana, scientist (born 9 January 1922 in Raipur, India; died 9 November 2011 in Concord, Massachusetts).

In 1916 Anderson was in Ottawa as part of a government advisory board that drafted the Migratory Birds Convention Act.

James Little Baillie, ornithologist, naturalist, writer (b at Toronto 4 July 1904; d there 29 May 1970). Employee of the Royal Ontario Museum for 48 years, Baillie's profession and avocation were devoted to the study and interpretation of ornithology.

Edith Berkeley, née Dunington, biologist (b at Tulbagh, S Africa 6 Sept 1875; d at Nanaimo, BC 25 Feb 1963) and Cyril, chemist (b at London, Eng 2 Dec 1878; d at Nanaimo, BC, 25 Aug 1973).