Source : Webster's Revised Unabridged Dictionary (1913)

Dalesman \Dales"man\, n.; pl. {Dalesmen}.
   One living in a dale; -- a term applied particularly to the
   inhabitants of the valleys in the north of England, Norway,
   etc. --Macaulay.

Source : WordNet®

dalesman
     n : a person who lives in the dales of northern England