"I had said in that research that almost everything we know about that poster is wrong," Mr Kimble told the BBC in a telephone interview. "So when Doyle died in 2010, and there were all these obituaries, I of course thought, how do we know she's really the model? What's the proof? It was the rabbit hole calling to me." One thing is for certain, after all these years: the woman at the lathe in Alameda, California was Naomi Parker Fraley.