Canning vs Duff

Canning

name
  • A village in Nova Scotia. 

  • The City of Canning, a local government area in Perth, Western Australia. 

  • A river in Alaska. 

  • A civil parish of Queens County, New Brunswick, Canada. 

  • A surname. 

  • A river in Western Australia, named after George Canning. 

Duff

name
  • A village in Saskatchewan, Canada 

  • An unincorporated community in Tennessee, United States 

  • A male given name 

  • An unincorporated community in Indiana, United States 

  • A surname. 

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