William Laidlaw Carruthers was an architect active, particularly in Inverness-shire in Scotland, in the late-19th and early-20th centuries. He was born in Inverness, Scotland on 9 May 1859, the son of Robert Carruthers and Ann Ballantyne Laidlaw.
In 1901 Carruthers took on his assistant, Samuel Grant Alexander, into partnership. The Carruthers & Alexander practice was especially noted for its restoration work.
William Laidlaw Carruthers died in Inverness, Scotland on 5 April 1914. He was survived by his wife, Kate Turner and their son, Robert Carruthers Ballantyne. Later, after Curruthers' death, the practice was continued on by Alexander in partnership with Carruthers' son, Robert.
Dictionary of Scottish Architects, 'William Laidlaw Carruthers', DSA Architect Biography Report, <http://www.codexgeo.co.uk/dsa/architect_full.php?id=L000027> [accessed 15 February 2008]