Jackson Parish vs Jonesboro

Jackson Parish

name

  • One of 64 parishes in Louisiana, United States, the equivalent of a county in other US states.. Parish seat: Jonesboro. 

Jonesboro

name

  • A town, the parish seat of Jackson Parish, Louisiana, United States. 

  • A city, the county seat of Union County, Illinois, United States. 

  • A city, the county seat of Clayton County, Georgia, United States. 

  • A city in Arkansas, United States and one of the two county seats of Craighead County. 

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