From an interview with Bo Kearns for the Sonoma Index Tribune

The question of my heritage didn’t affect me much until I was 18 years old and left Hemet for Stanford University. When people asked where I was from, they always followed-up with: “Where are you REALLY from?” I knew I had been born in Hawai`i, but I knew very little beyond that and my discomfort about my ethnicity only got worse when I got my birth certificate and learned the truth.

The full story in Chapter 9 in the book.