Alfred Henry Tyrer was born in Birkdale, Lancashire (England, United Kingdom) around 1870, to William and Anna Williams Tyrer. He emigrated to Canada during his twenties. In 1894, Tyrer married Mary “Minnie” Adelaide Golden (1868-1929) in Hamilton (Ontario). The couple had one child named Elliott Golden Tyrer (1902-1972). Alfred Henry Tyrer worked as a Reverend for the Church on England in Canada and published several books on the matters of sex education and birth control. Tyrer died in York (Ontario) on April 28, 1942.

William Thomas Tutte was born on May 14, 1917, in Newmarket (United Kingdom). In 1935, Tutte received a scholarship to study Natural Sciences at Trinity College, Cambridge, where he majored in Chemistry and graduated with first-class honours in 1938. In 1940, as a graduate student, he transferred to Mathematics. During that time, Tutte and his colleagues Cedric Smith, Leonard Brooks, and Arthur Stone started researching mathematics and publishing under the pseudonym Blanche Descartes. They were one of the first to solve the problem of Squaring the square, and the first to solve it without a square subrectangle.

In January 1941, Tutte joined Bletchley Park, the organization of code-breakers in the United Kingdom. While at Bletchley Park, Tutte worked on a set of machine-ciphers named Fish, used for high-level communications between Berlin and the field commanders. In 1943, the British Post Office created the electronic computer COLOSSUS with algorithms created by Tutte and his collaborators Max Newman and Ralph Tester. COLOSSUS was used to break Fish codes throughout the remainder of the Second World War.

Once the War was over, in late 1945, Tutte resumed his studies at Cambridge where he received his Ph. D. with a dissertation titled "An algebraic theory of graphs" where he established the subject of Matroid theory.

In 1948, after an invitation from geometer Harold Scott MacDonald Coxeter, Tutte moved to Canada and started teaching at the University of Toronto where he gained preeminence in the field of Combinatorics. In 1958, he was made Fellow of the Royal Society of Canada (FRSC). In 1962, Tutte began teaching at the University of Waterloo, helping establish the identity and reputation of the University and create the Faculty of Mathematics (in 1967). At the University of Waterloo, he became one of the first members of the Department of Combinatorics and Optimization. Tutte retired in 1985 but continued working as Professor Emeritus. Between 1990 and 1996, Tutte was the first president of the Institute of Combinatorics and its Applications. In 2001, he was named Officer of the Order of Canada.

In 1949 Tutte married Dorothea Mitchell. The couple lived in West Montrose until Dorothea's passing in 1994. Afterwards, Tutte moved back to Newmarket (United Kingdom). He returned to Waterloo in 2002.

William Thomas Tutte died on May 2, 2002, in Waterloo.

Andy Turnbull usually works as a writer but during his time at The Record he worked as a photographer.

Iris Turcott was a dramaturge, director, and actor. She obtained an Honours degree with the University of Western Ontario on English and Drama as well as a Bachelor of Education at the University of Toronto. Turcott has worked with many Canadian stage companies such as the Canadian Stage and the Stratford Festival. She was also part of international plays in Manchester, Melbourne, and the Abbey Theatre. Turcott was also involved in the education and mentorship of the arts, having taught at the National Theatre School of Canada. She was the recipient of the George Luscombe Award in 2008 and the Playwrights Guild of Canada's Honorary Award in 2013. Turcott died on September 22, 2016.

Tsimshian are an Indigenous people of the Pacific Northwest Coast.

Pierre Eliot Trudeau was the prime minister of Canada in 1968 to 1979 and 1980 to 1984. Born in Montreal on October 18, 1919, Trudeau was a politician, constitutional lawyer, and a writer. Trudeau was an prominent figure in Canadian politics as well as internationally. He is known for negotiating the independence of Canada from Britain and creating a new Canadian Constitution with the Charter of Rights and Freedoms. He was married to Margaret Sinclair and had four children. Trudeau died on September 28, 2000 in Montreal.

Justin Trudeau is the 23rd Prime Minister of Canada.

Trotter Studios was operated by Albert Trotter.

Hugh Trenchard, first Viscount Trenchard, was born in Taunton, England on February 3, 1873. He was a British officer best known for his role in the formation of the Royal Air Force. He died February 10, 1956.

Trans-Canada Air Lines (also known as TCA in English, and Air Canada in French) was a Canadian airline that operated as the country's flag carrier.

In 1964, an Act of Parliament proposed by Jean Chrétien changed the name of Trans-Canada Air Lines to "Air Canada," which was already in use as the airline's French-language name, effective 1 January 1965. In 1978, Air Canada was divested by parent CNR and became a separate Crown corporation. Air Canada was privatized in 1989.

Alfred Harding Tomlinson was born in England in 1880. After graduating from the Ontario Agricultural College in Guelph, Ontario, specializing in ornamental horticulture, Tomlinson was taken on as a lecturer and taught for almost 30 years. He died in Alberta on July 25, 1946.

Tlingit, also spelled Tlinkit, are an Indigenous people of the Pacific Northwest Coast.

Caleb Benjamin Tillinghast was born in West Greenwich, Rhode Island on April 3, 1843. He was the State Librarian for over 25 years. In 1870, he was part of The Boston Journal staff and later became the city editor. Nine years later, Tillinghast became the Acting Librarian of the State Librarian and later became the State Librarian in 1883. He also became the Chairman of the Free Public Library Commission, as well as Treasurer for the Board of Education. He died in Boston, Massachusetts, on April 28, 1909.

William (Bill) Thomson (b. 1926) is an urban planner who has worked extensively in the Waterloo Region. Bill obtained his BA in Geography from McMaster University, and his MA in Geography and Urban Economics from the University of Indiana in 1953. In 1961 Bill became the first Planning Director for the City of Kitchener, and later the first Commissioner of Planning and Development for the Regional Municipality of Waterloo. In 1985, Bill became the Commissioner of Economic Development for Kitchener. Bill later entered the consulting world and in 1992 joined the firm Thomson McGough Consultants Inc. and later founded his own firm Bill Thomson Consultant Inc. During this period Bill was also an Adjunct Professor at the University of Waterloo in the School of Urban and Regional Planning and also taught a course on economic development.
Bill is a member of many organizations and has served on the board of a variety of these, including the Canadian Institute of Planners, the Town Planning Institute of Canada, and the Energy Conservation Planning Task Force for the Canadian Institute of Planners. Bill retired in 2008.

Successor to William & Thomson.

Waldo Thompson was born in 1813 and was a member of the New England Genealogical Society. Thompson was the author of Swampscott: historical sketches of the town. The book, published in 1885, provides a historical overview of Swampscott, a town located in northeastern Massachusetts.

Marie Hélène (Helen) Charette was born to Honoré Charette and Marie Lamar in Windsor, Ont. in 1914. In 1935, she married Francis Lauzon, who died mere days before she gave birth to their son Frank in 1939. In 1942, she married James Peter Thompson, and they had 4 children, including Patricia Ann in 1949.