Boothferry vs East Riding of Yorkshire

Boothferry

name
  • A village in Asselby parish and Howden parish, East Riding of Yorkshire, England, north of Boothferry Bridge over the Yorkshire Ouse (OS grid ref SE7326). 

East Riding of Yorkshire

name
  • A historical division of Yorkshire. 

  • A local government district and ceremonial county in the north east of England. 

How often have the words Boothferry and East Riding of Yorkshire occurred in a corpus of books? (source: Google Ngram Viewer )