He was 52 , and was survived by his wife and two daughters .
On July 21 , 1967 , Weisbart died of what was apparently heart failure ; he collapsed while playing golf with film director Mark Robson on a Los Angeles golf course .
Weisbart was 52 , and was survived by Weisbart 's wife and two daughters .
On July 21 , 1967 , Weisbart died of what was apparently heart failure ; he collapsed while playing golf with film director Mark Robson on a Los Angeles golf course .