Blackstone Avenue is a street in Chicago, Illinois on Earth, in the United States. This was the street on which Avery Johnson grew up with his Aunt Marcille in a walkup apartment building. Several years after Avery joined the UNSC Marine Corps, his Aunt moved out of the apartment to settle in the Seropian.
List of appearances
- Halo: Contact Harvest (First appearance)
- Halo: Contact Harvest, page 38