Frank vs Tonto

Frank

name
  • A male given name from the Germanic languages. 

  • A diminutive of the male given name Francis 

  • A surname transferred from the nickname. 

noun
  • One of the Franks, a Germanic federation that inhabited parts of what are now France, the Low Countries and Germany. 

Tonto

name
  • The Native American sidekick of the Lone Ranger. 

  • A member of the Tonto Apaches. 

noun
  • A Native American who accepts a subservient position to a white person. 

  • A sidekick. 

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