Isabel Bolton (real name: Mary Britton Miller) was born in Massachusetts in 1883, an orphan and an identical twin (her twin sister drowned when they were children). She spent most of her life in New York but kept her life secretive. It is known that she spent some time in Europe, probably in Italy, to judge by Many Mansions. She never married, living alone in a four bedroom apartment in Greenwich Village. She was sixty-three when her first novel for adults, Do I Wake or Sleep, was published but neither that nor subsequent novels made much impression. She died in 1975.