Joseph Burr Tyrrell (November 1, 1858 Weston, Ontario – August 26, 1957) was a Canadian geologist, cartographer, and mining consultant. He discovered dinosaur (Albertosaurus) bones in Alberta's Badlands and coal around Drumheller in 1884.
Tyrrell was the third child of William and Elizabeth Tyrrell. He was a student at Weston Grammar School before graduating from Upper Canada College in 1876 and receiving a law degree from the University of Toronto in 1880. However, after articling for a law firm in Toronto, his doctor advised him to work outdoors due to his health.
He joined the Geological Survey of Ottawa in 1881, leading or participating in numerous explorations. He lead the 1893 and 1894 expeditions into the Northern Barren Lands - the first visit to the Kivalliq Region Barrenlands by a European since the explorations of Samuel Hearne in the 1770s. Younger brother, James W. Tyrrell accompanied Tyrrell on the expeditions, which included first European contact with the Ihalmiut, an Inuit people, now almost extinct.
Tyrrell married Mary Edith Carey in 1894 and they had three children, Mary (1896), George (1900), and Thomas (1906). Mary Edith was founder and first president in 1921 of the Women's Association of the Mining Industry of Canada.
In 1894, Tyrrell stumbled upon biographical recollections (11 books of field notes, 39 journals, maps and a narrative) of Canadian overland explorer, cartographer and fur trader David Thompson (explorer) and, in 1916, published them as "David Thompson's Narrative".
Tyrrell went into the gold-mining business in 1898, a career that would last more than 50 years. He was mine manager of the Kirkland Lake Gold Mine in northern Ontario for many years.
Tyrrell retired to northeast Scarborough on the Rouge River, where he established substantial apple orchards and interested in grafting and breeding, developed the Golden Delicious. The expanded orchards, later managed by his son George, are now the site of the Toronto zoo.
Tyrrell was most interested in apple breeding in his retirement and crossed a Talman Sweet with a Red Delicious to create the popular Golden Delicious.
A school was made by his name in Scarborough M1W1B3 J.B Tyrrell Senior Public School