Mesa vs Pioneer

Mesa

name
  • A census-designated place in Inyo County, California. 

  • An unincorporated community in Colorado. 

  • A city in Maricopa County, Arizona. 

  • A city in Washington. 

  • A town in Mozambique. 

Pioneer

name
  • A census-designated place in Amador County, California, United States. 

noun
  • A person born on/before 31 Dec 1949 and possessing Singapore citizenship on/before 31 Dec 1986, given this status and certain benefits to recognise their contributions to Singapore's early development. 

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