Marshal vs Ridge

Marshal

name
  • A male given name transferred from the surname, of 19th century and later usage. 

  • An English and Scottish status surname from Middle English for someone who was in charge of the horses of a royal household, or an occupational surname for someone who looked after horses, or was responsible for the custody of prisoners. 

Ridge

name
  • A male given name transferred from the surname. 

  • A toponymic surname from Middle English, named after the natural feature. 

  • A village in Hertsmere district, Hertfordshire, England, United Kingdom. 

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