It was a great challenge to reconstruct Gypsy Rose Lee life, and my interviews with her sister [June Havoc] proved invaluable. It's not often that writers have access to living primary source material; this was the only person who experienced life on the vaudeville circuit with Gypsy during the 1920s, and who saw her perform at Minsky's Burlesque in the 1930s. She knew things that no one else could ever possibly know.