Pipe vs Siren

Pipe

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

  • A surname. 

Siren

name
  • A town in Burnett County, Wisconsin, United States, surrounding the village of the same name. 

  • A village, the county seat of Burnett County, Wisconsin, United States. 

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