Pilgrim vs colonist

Pilgrim

noun

  • A settler of the Plymouth Colony. 

  • Someone connected with Plymouth Argyle Football Club, as a fan, player, coach etc. 

name

  • A surname. 

colonist

noun

  • A founder of a colony. 

  • A member of a colony. 

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