Coal vs Duck

Coal

name
  • An unincorporated community and coal town in Kanawha County, West Virginia, United States. 

  • Four townships in the United States, in Missouri, Ohio (2), and Pennsylvania, listed under Coal Township. 

  • An unincorporated community in Henry County, Missouri, United States, named after early settler Stephen Coale. 

Duck

name
  • An unincorporated community in West Virginia. 

  • A surname transferred from the nickname. 

  • A town in North Carolina. 

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