Port Townsend vs Rigby

Port Townsend

name

  • A city, the county seat of Jefferson County, Washington, United States. 

Rigby

name

  • A city, the county seat of Jefferson County, Idaho, United States. 

  • A surname. 

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