Ridsdale Family History
Ridsdale Surname Meaning
Probably from Redesdale rather than from Ridsdale (both Northumb). Redesdale is recorded as Redesdale in 1075 and Riddesdale in 1203 and derives from the river-name Rede (genitive Redes itself from Old English rēad ‘red’)
+ Old Scandinavian dalr ‘valley’.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
