found: The Song you gave me [MP] 1933, 1934(name not given)
found: The Motion picture guide, 1985-:v. 7, p. 3037 (producer, John Maxwell)
found: Halliwell's Filmgoer's comp., 1980:p. 444 (Maxwell, John; b. 1875; d. 1940; Scottish lawyer, co-founder of Associated British Productions and ABC cinema chain)
found: Blackmail, c1929:title frame (John Maxwell; film producer)
found: Elstree calling Web site, 3 Aug. 2011:(John Maxwell; d. 1940)
found: Times of London online, 3 Aug. 2011:(John Maxwell, aged 63, Glasgow solicitor who entered the film industry as the owner of a string of cinemas, owner of British International Productions at Elstree Studios, d. 3 Oct. 1940)
found: IMDb, July 27, 2011(John Maxwell l(XVI), producer, active 1926-1933)