Before revision: Typical early 20th century American Craftsman-style houses in the Jefferson Park Historic Preservation Zone After the 1948 Supreme Court ruling that banned racial covenants on property - Shelley v. Kraemer - many of Jefferson Park's white residents left the neighborhood, in turn being replaced by upper-middle and upper-class African-Americans.
After revision: Craftsman bungalows on 3rd Avenue at 36th Street in the Jefferson Park HPOZ After the 1948 Supreme Court ruling that banned racial covenants on property - Shelley v. Kraemer - many of Jefferson Park's white residents left the neighborhood, in turn being replaced by upper-middle and upper-class African-Americans.