Rigby vs Steubenville

Rigby

name

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

  • A surname. 

Steubenville

name

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

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