Hereford was an English town.
History
UNIT had a victim-retrieval station located there. Martha Jones was stationed there for a time before faking her death. (AUDIO: Dissected [+]Error: Code 2 - no data stored in variables, cache or SMW.)
In 2050, hurricanes caused by an Aeolian struck Hereford, where hurricanes "hardly ever" happened. (TV: Aeolian [+]Dave Warner, K9 series 1 (2010).)