found: Number 17 [VR], 1998?: credits (John Stuart)
found: Number seventeen, [20--?]: opening credits (John Stuart)
found: Halliwell's filmgoers and video viewer's companion, 1993: page 727 (John Stuart (1898-1979) (John Croall); British leading man of the 20s; character actor of the 40s and after)
found: The encyclopedia of British film, 2013: page 735 (John Stuart (born Edinburgh, 1898-died London, 1979); actor; real name: John Croall; amiable leading man in silent films and 30s talkies, who became a reliable character actor in later years in a career that lasted from 1920 until 1978 and included more than 150 titles)
found: IMDb, August 12, 2015 (John Stuart; actor; born July 18, 1898 in Edinburgh, Scotland as John Alfred Louden Croall; died October 17, 1979 in London, England; leading man of the silent screen; prolific character actor)