Red Clydeside: John Maclean - Illustrated biography of the Scottish Marxist. - http://gdl.cdlr.strath.ac.uk/redclyde/redclypeobyemle.htm
Ballad Of John MacLean - Lyric and notes for Matt McGinn's song "Ballad Of John MacLean" (as sung by Dick Gaughan). - http://www.dickgaughan.co.uk/songs/texts/ballmacl.html
The Maclean Collection - Comprehensive series of speeches and articles by John Maclean (1879-1923). - http://www.marxists.org/archive/maclean/