Transferred use of the surname, in origin a local name from any of various places named in Old English as ‘the settlement in the valley’, from dæl ‘valley’ + tūn ‘enclosure, settlement’. The name is borne by the celebrated pianist Dalton Baldwin (b. 1931).
English: 1. nickname for a person with a large or unusually shaped head, from Middle English poll ‘head’ (Middle Low German polle ‘(top of the) head’) + the pejorative suffix -ard. The term pollard in the sense denoting an animal that has had its horns lopped is not recorded before the 16th century, and as applied to a tree the word is not recorded until the 17th century; so both these senses are almost certainly too late to have contributed to the surname. 2. pejorative derivative of the personal name Paul. The surname has been established in Ireland since the 14th century.