Bank vs Tonto

Bank

name

  • A village in the New Forest in Hampshire, England. 

  • A major London Underground station in the City of London, named after the Bank of England and one of the busiest stations on the network (OS grid ref TQ3281) 

  • A surname. 

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 Bank and Tonto occurred in a corpus of books? (source: Google Ngram Viewer )