Catherine Share was born in Paris, France on December 10, 1942. Her parents were part of an anti-Nazi underground movement during World War II. Catherine was sent to an orphanage after her natural parents killed themselves in act of defiance against the Nazi regime. She was adopted at the age of eight by an American couple.
For the following years Share's life was fairly normal until her mother, inflicted with cancer, killed herself, leaving Share to care for her blind father. She met her obligations until he remarried then left home, dropped out of college, married, divorced and began to wander around California.