Rosemary LaBianca was born on 15 December 1929 in Mexico. She was married to Leno LaBianca and Frank Struthers. She died on 10 August 1969 in Los Angeles, California, USA.
Rosemary's early life is somewhat of a mystery. Her parents either abandoned her or died prematurely. She grew up in an Arizona orphanage until the age of twelve, when a California family by the name of Harmon adopted her.