Education
Mackenzie was educated at the Royal Technical College and Glasgow University.
Mackenzie was educated at the Royal Technical College and Glasgow University.
He became a sales manager and a councillor on Glasgow Corporation from 1952. Mackenzie contested Aberdeenshire East in 1950 and Kinross and Western Perthshire in 1959. He served until his retirement at the 1987 general election.
He was Parliamentary Private Secretary to the Chancellor of the Exchequer from 1966.
In the 1970s he served as a minister at the Department of Industry and the Scottish Office.
42nd United Kingdom Parliament. 43rd United Kingdom Parliament. 44th United Kingdom Parliament.
45th United Kingdom Parliament.
46th United Kingdom Parliament. 47th United Kingdom Parliament.
48th United Kingdom Parliament. 49th United Kingdom Parliament]
He became Member of Parliament for Glasgow Rutherglen at a 1964 by-election (where he narrowly beat Norman Buchan at the Labour Party selection meeting).