The surname fford, with two small fs, is one of a variety of spellings of Ford, a topographically derived name of Anglo-Saxon origin that might have been applied to anyone who lived adjacent to a ford, a shallow river crossing. Although people with the name Ford from different parts of the country are not necessarily related in any way,

Clive Rowley presented evidence in The Ford Green Story that the North Staffordshire name originated from the village of Ford near Leek in the Staffordshire Moorlands and spread from there across Staffordshire and Cheshire. The ancestors of the Ford family of Ford Green Hall in Norton can be traced back to Simon del fforde, who's son John was granted land in Norton in 1317. It is possible that the name printed as fford derives from a misinterpretation of the hand written capital F, which looks like two small fs in old records.

Additional Information: The Internet Surname Database