OSM tag name=Mount Vernon Street Historic District matches Mount Vernon Street Historic District in these Wikidata fields:
| Historic districts in Middlesex County, Massachusetts | boundary=protected_area, leisure=park, place, landuse=residential, boundary=administrative, admin_level |
| Historic districts on the National Register of Historic Places in Massachusetts | boundary=protected_area, leisure=park, place, historic, landuse=residential, boundary=administrative, admin_level |
| National Register of Historic Places in Somerville, Massachusetts | boundary=protected_area, historic |