Littlestone vs Old Dart

Littlestone

name
  • Synonym of Littlestone-on-Sea, Kent, England. 

Old Dart

name
  • Britain, England, London, or Ireland; the Old Country. 

  • Dartmouth Royal Navy College. 

How often have the words Littlestone and Old Dart occurred in a corpus of books? (source: Google Ngram Viewer )