Pipe vs Tarn

Pipe

name
  • An unincorporated community in Fond du Lac County, Wisconsin, United States. Named after the calumet (pipe) smoked by native Americans. 

  • A surname. 

Tarn

name
  • A river in southwestern France. 

  • A department of Occitanie, France; previously in Midi-Pyrénées (INSEE code 81). 

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