Peaches Benedict, (real name Miyoshi Benedict) is Claudia's maternal aunt. She first appears at her mothers funeral. She married a man named Russ and together they had a daughter named Lynn and another baby that died from a miscarriage. She was born in Sapporo Japan. She moved to the United States when she was two.
- Peaches' real name is Miyoshi, as mentioned in the book in which she gives birth to Lynn.
- She is much younger than her sister Rioko.