Bluegrass Stater vs Kentuckian

Bluegrass Stater

Kentuckian

adj

  • Of or pertaining to the US state of Kentucky. 

noun

  • A native or resident of the state of Kentucky in the United States of America. 

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