John Maclauchlan Milne was born in Buckhaven, the son and nephew of the artists Joseph Milne and William Watt Milne respectively. In 1938 he declared ‘I cannot look back on a time when I was not familiar with the smell of oil paint and the paraphernalia of a studio.’ (Artist’s statement, Contemporary Scottish Painting, The Gallery, St Andrews, August 1938, cited in The Life and Work of John Maclauchlan Milne, Portland Gallery, London, 2010, exh. cat., p.92).
It is thought that Milne received his training from his father, before a period spent in Canada. Whilst there he described himself as an artist, but spent time working as a cowboy in order to earn a living.