OSM tag name=Mill Hill School matches Mill Hill School in these Wikidata fields:
Boarding schools in London | site=school, amenity=school, building=school, amenity=college, type=site, building=college |
Member schools of the Headmasters' and Headmistresses' Conference | site=school, amenity=school, building=school, amenity=college, type=site, building=college |
Private co-educational schools in London | site=school, amenity=school, building=school, amenity=college, type=site, building=college |
Private schools in the London Borough of Barnet | site=school, amenity=school, building=school, amenity=college, type=site, building=college |