Ashdown Family History

English: habitational name from Ashdon in Essex, Ashdown Forest in East Sussex, or Ashdown in Berkshire (now lost). The first two are named from Old English æscen ‘growing with ash trees’ + dun ‘hill’. The last may be from an Old English personal name Æsc or Old English æsc ‘ash tree’ + dun ‘hill’.

Source: Dictionary of American Family Names ©2013, Oxford University Press