John Carter Callaghan, (October 1, 1923 – April 6, 2004) was a Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 cardiac surgeon

Cardiac surgeon

A cardiac surgeon is a surgeon who performs cardiac surgery—operative procedures on the heart and great vessels.-Training:A cardiac surgery residency typically comprises anywhere from six to nine years of training to become a fully qualified surgeon...

 who "pioneered open-heart surgery in Alberta"

Born in Hamilton, Ontario

Hamilton, Ontario

Hamilton is a port city in the Canadian province of Ontario. Conceived by George Hamilton when he purchased the Durand farm shortly after the War of 1812, Hamilton has become the centre of a densely populated and industrialized region at the west end of Lake Ontario known as the Golden Horseshoe...

 on October 1, 1923, he received his medical degree from the University of Toronto

University of Toronto

The University of Toronto is a public research university in Toronto, Ontario, Canada, situated on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in Upper Canada...

 in 1946. In 1955, he joined the Division of Cardiovascular and Thoracic Surgery at the University of Alberta

University of Alberta

The University of Alberta is a public research university located in Edmonton, Alberta, Canada. Founded in 1908 by Alexander Cameron Rutherford, the first premier of Alberta and Henry Marshall Tory, its first president, it is widely recognized as one of the best universities in Canada...

 Hospital and performed Canada’s first successful open heart surgery

Open Heart Surgery

Open Heart Surgery was released on August 8, 2000 by rock band Virginwool. The band signed to Breaking/Atlantic Records after initially beginning signed to Universal Records. The album was produced and mixed by Brad Wood....

.

In 1985, he was made an Officer of the Order of Canada

Order of Canada

The Order of Canada is a Canadian national order, admission into which is, within the system of orders, decorations, and medals of Canada, the second highest honour for merit...

. In 1986, he was inducted into the Alberta Order of Excellence

Alberta Order of Excellence

The Alberta Order of Excellence is a civilian honour for merit in the Canadian province of Alberta. Instituted in 1979 when Lieutenant Governor Frank C...

.