Oxfordshire
From Tardis Wiki, the free Doctor Who reference
Oxfordshire was an English county.
On 11 June 1925, the Fifth Doctor, Nyssa, Tegan Jovanka and Adric visited Cranleigh Hall in Oxfordshire. Sir Robert Muir was the Chief Constable of the county at that time. (TV: Black Orchid)
In 1983, Lavinia Smith was living in Oxfordshire. (COMIC: City of Devils)