"Sam L. Warner Dies; Was Movie Pioneer; Succumbs to Pneumonia in Los Angeles at the age of 40--Bought First Film at 16; Associated With Brothers; Their Corporation Became Leader in Producing Field--Recently Acquired Vitaphone"
October 6, 1927 · pg. 25:3
Moving Picture World (US)
"Vaudeville the One in Danger Not Vitaphone, Says Warner"
