Title: Jack Mackenzie
Content:  Chalmers Jack Mackenzie, (July 10, 1888 &ndash; February 26, 1984) was a Canadian civil engineer, chancellor of Carleton University, president of the National Research Council, first president of Atomic Energy of Canada Limited, first president of Atomic Energy Control Board and instrumental in the development of science and engineering education in Canada. He was born in St. Stephen, New Brunswick, the youngest of six children of James and Janet MacKenzie. He attended Milltown High School, then completed a Bachelor of Engineering at Dalhousie University in 1909. In 1912 he was hired to develop an engineering program at the University of Saskatchewan. He served in the Canadian Army during World War I (1915-1918). After the war he continued at the University of Saskatchewan until 1932, when he took a leave of absence to supervise public works 
Title: Mac Jack
Content:  McCollen Ntsikelelo Jack (8 March 196512 August 2020), known as Mac Jack, was a South African educator and politician. A member of the African National Congress, Jack was appointed to the Northern Cape Provincial Legislature in June 2013. He served as the Member of the Executive Council (MEC) for Transport, Safety and Liaison from June 2013 until May 2014, when he was appointed the MEC for Health. Following a cabinet reshuffle in March 2016, he was appointed the MEC for Finance, Economic Development and Tourism. Jack held the position until his appointment as MEC for Education in May 2019, despite him briefly being demoted from the Executive Council in May 2017.
Title: Jack MacKenzie
Content:  Jack MacKenzie (13 September 1892 – 19 December 1979) was a British-born cinematographer who worked for most of his career in the United States. During the silent era Jack MacKenzie was employed in Hollywood. In 1930 MacKenzie was sent to London by RKO to work on two films for the company's British partner Associated Talking Pictures. MacKenzie then returned to America. While he occasionally worked on prestige films such as Mary of Scotland (1936) he was employed mainly on numerous low-budget productions and from 1951 in the developing television industry.
Title: Mackenzie (surname)
Content: Jack Mackenzie (1888–1984), Canadian engineer and academic ; James Cameron Mackenzie (born 1852), American educator ; James MacKenzie (VC) (1889–1914), Scottish soldier, recipient of the Victoria Cross ; James Mackenzie (actor) (born 1979), Scottish actor ; Jane Mackenzie (1825–1893), second wife of Alexander Mackenzie ; Janet Mackenzie (born 1962), British Anglican priest ; Jean Kenyon Mackenzie (1874–1936), American writer and missionary in West Africa ; John Mackenzie (disambiguation), several people ; John Mackenzie (VC) (1869–1915), Scottish, recipient of the Victoria Cross ; John MacKenzie (Medal of Honor) (1886–1933), American Medal of Honor recipient ; John Joseph Mackenzie (born 1865), Canadian pathologist ; John Stuart Mackenzie (born 1860), British philosopher ; Jock Mackenzie, Scottish footballer ; Kelvin MacKenzie (born 
Title: W. J. M. Mackenzie
Content:  Prof William James Millar Mackenzie CBE FBA (1909–1996), also known as Bill Mackenzie, was professor of government at the University of Manchester and professor of politics at the University of Glasgow. He was appointed Commander of the Order of the British Empire (CBE) in 1963 and a fellow of the British Academy (FBA) in 1968. The W. J. M. Mackenzie Book Prize of the Political Studies Association is named after him.
Title: Jack MacKenzie (footballer, born 2000)
Content:  Jack MacKenzie (born 4 July 2000) is a Scottish professional footballer who plays for Scottish Premiership club Aberdeen as a defender.
Title: Jack Mackenzie
Content:  In 1939 he left Saskatchewan for Ottawa to become president of the National Research Council. In 1943 he received the Sir John Kennedy Medal. In 1949 he sat on the Royal Commission on National Development in the Arts, Letters and Sciences, the so-called "Massey Commission", one objective of which was developing Canada's system of publicly funded research. In 1967, he was made a Companion of the Order of Canada. He received honorary degrees from the University of Saskatchewan, the University of British Columbia, the University of Western Ontario, the University of Ottawa, McMaster University, Queen's University, and the University of New Brunswick. The Mackenzie Engineering Building at Carleton University is named in his honour. The high school in Deep River, Ontario, Mackenzie Community School (formerly C.J. Mackenzie High School ), is named in his honour.
Title: Michael Mackenzie (filmmaker)
Content:  Michael Mackenzie is a Canadian film director, screenwriter, theatre director, playwright and dramaturge. He has directed two feature films, both theatrically released in Canada. His plays have been staged in Europe and North America and variously published in English, French, German and Hungarian. He has a Ph.D in the History of Science from L'Université de Montréal. Past academic appointments include Visiting Fellow at Princeton University's Woodrow Wilson School of Public and International Affairs and consultant at the United Nations.
Title: Jack McConnell
Content:  In November 2001, as he prepared to succeed Henry McLeish, he told a media conference some details regarding an extra marital affair that he had been involved in seven years previously. McConnell is married to Scottish cultural administrator and current Chief Executive Officer of Glasgow City Council quango Glasgow Life, Bridget McConnell.
Title: John Mackenzie (film director)
Content:  John Leonard Duncan Mackenzie (22 May 1928 – 8 June 2011) was a Scottish film director who worked in British film from the late 1960s, first as an assistant director and later as an independent director himself.

Question: What is Jack Mackenzie's occupation?
Answer: civil engineer.