Prof Alexander Robert Horne FRSE OBE MIME PRSSA (1881–1953) was a Scottish engineer and author.
He was apprenticed as an engineer to James Milne & Sons Ltd of Milton House Works in the Canongate[1] in Edinburgh probably around 1896.
In 1910 he obtained a post as Professor of Engineering at Robert Gordons College in Aberdeen, aged only 29.
His proposers were Sir Thomas Hudson Beare, Richard Stanfield, George Adam Smith and John Taylor Ewen.
[3] In 1929 he moved to Heriot Watt University as Professor of Mechanical Engineering and stayed there until retiral in 1945.