Slim vs Tonto

Slim

name

  • A male given name. 

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