Leavenworth vs guardhouse

Leavenworth

name
  • A surname. 

  • A city, the county seat of Leavenworth County, Kansas. 

  • A town in Indiana; named for founders Zebulon and Seth Leavenworth. 

  • A city in Washington. 

  • An unincorporated community in Minnesota; named for American soldier Henry Leavenworth. 

guardhouse

noun
  • Synonym of military prison. 

  • A station for guards, especially at the entrance of a town, castle, etc. 

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