found: The Black coin [MP] 1936:credits (the players, Ruth Mix)
found: Inter. film necrology, 1981(Ruth Mix; actress; d. Sept. 21, 1977, age 65)
found: Performing arts biog. master index, 1981(Ruth Mix; b. 1913)
found: IMDb, August 26, 2019:(Ruth Mix, actress ; b. July 13, 1912 in Dewey, Oklahoma, USA as Nadine Ruth Jane Mix ; d. September 21, 1977 (age 65) in Corpus Christi, Texas, USA)
found: Texas, Death Certificates, 1903-1982 via Ancestry.com, August 28, 2019:(Ruth M. Hill [Ruth M. Mix] ; birth: 13 Jul 1912, Oklahoma ; death: 21 Sep 1977, Corpus Christi, Nueces, Texas)
