This is Rachel's older sister. When they are young they have the typical relationship of two girls, full of drama and bickering. It is accidentally that Rachel's leprosy is discovered at school through Sarah's taunting of Rachel. Sarah feels guilty about this for much of her life and feels like she was not a good sister to Rachel. But the two become close friends and even live together during their final years. Sarah is able to provide Rachel with a complete picture of what happened to the rest of the family while Rachel was detained at Kalaupapa.