Moorhead vs Vermillion

Moorhead

name

  • A city, the county seat of Clay County, Minnesota, United States. 

  • A surname. 

Vermillion

name

  • A city, the county seat of Clay County, South Dakota, United States. 

  • A surname. 

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