Ancient parish in Middlesex archdeaconry of the diocese of London
Harrow on the Hill [yellow] surrounded by [from the top, clockwise] Pinner [pink], Wealdstone [green], Wembley [blue], Greenford [green], Northolt [orange] and Ruislip [blue], all of which were separate ancient ecclesiastical parishes, except for Wealdstone and Wembley, which were hamlets of Harrow.
General References
January 1936: Valete: V A.: R. E. Connor has removed to Harrow
Streets, Places, &c.