Yorkshire

Yorkshire was a traditional county in the north of England. (TV: The Crimson Horror)

In 1820-1898 Florence Sundvik was an inhabitant of the village of Maiden's Point. Mary Eliza Millington was born in the village, but died four days after her birth in 1898. (TV: The Curse of Fenric)

In 1893, Winifred Gillyflower founded the community of Sweetville in the county. The Eleventh Doctor and Clara investigated a series of deaths in the area, which he referred to as "the Crimson Horror". (TV: The Crimson Horror)

The Tenth Doctor and Donna took Agatha Christie to the Yorkshire town of Harrogate in 1926 to recover after her encounter with the Vespiform. (TV: The Unicorn and the Wasp)

As a student, Polly Wright frequently visited the Yorkshire Moors. (PROSE: Invasion of the Cat-People)

In 1998, when Jason Kane was fifteen, he ran away from his abusive father and spent two and a half years wandering around Yorkshire, Centrepoint and Mile End. (PROSE: Death and Diplomacy)

Martin Chisom grew rhubarb in Yorkshire and pondered if the vegetable had ever been worshipped there. (PROSE: Lost in the Wakefield Triangle)

Behind the scenes

 * Frazer Hines, Mary Tamm and David Brierley were all born in Yorkshire.

Real World Locations
Though it's possible that the following locations don't exist in the same geographic space in the Doctor Who universe, such cases are few and far between. Therefore, the following towns and cities are probably located within the county of Yorkshire. {|
 * Barnsley||Bradford||Bridlington||Castleford||Dewsbury||Doncaster||Halifax||Harrogate||Huddersfield||Hull||Keighley||Leeds||Middlesbrough||Pudsey
 * Redcar||Rotherham||Scarborough||Sheffield||Wakefield||York
 * Redcar||Rotherham||Scarborough||Sheffield||Wakefield||York