Question: What is the cause of death of director of film Change Of Heart (1934 Film)?
Sentence (from "Change of Heart (1934 film)"): The movie, about a quartet of college chums who all move to 1934 New York City, was written by James Gleason and Sonya Levien from Kathleen Norris's novel, "Manhattan Love Song" and directed by John G. Blystone.
Relevant evidence: Yes