Liora Soladay had every intention of returning to her native Cape Town after her backpacking trip in India and Nepal. It was 1993. She had never heard of the Grateful Dead or of West Marin—two forces that would come to shape her life.

But in a New Delhi vegetarian restaurant on her 24th birthday, she bumped into Jay Soladay, a San Anselmo kid on the fringes of the Dead’s circle who had hung out backstage…