Field vs Slough

Field

name
  • A hamlet in Leigh parish, East Staffordshire district, Staffordshire, England (OS grid ref SK0233). 

  • A locality in south-east South Australia. 

  • An unincorporated community near Field Hill within Yoho National Park, British Columbia, Canada, named after Cyrus West Field. 

  • A community in West Nipissing, Northeastern Ontario, Canada. 

  • An unincorporated community in Bell County, Kentucky, United States. 

  • A neighbourhood of Nokomis, Minneapolis, Minnesota, USA. 

  • A surname. 

Slough

name
  • A town in east Berkshire, England (formerly Buckinghamshire), close to Heathrow Airport. 

  • A borough and unitary authority (Slough Borough Council) in Berkshire. 

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