housekeeper vs land agent

housekeeper

noun
  • Someone (traditionally a woman) employed to look after the home, typically by managing domestic servants or superintending household management; also someone with equivalent duties in a hotel, institution etc. 

  • Someone who manages the running of a home, traditionally the female head of the household. 

land agent

noun
  • A professional employed to manage an estate; steward or estate manager. 

  • A government official responsible for managing public lands. 

  • An employee of an oil or mining company who negotiates with landowners for rights to extract oil or minerals from their property. 

  • A real estate broker, especially one who specializes in the buying and selling of farms or undeveloped land. 

  • A person employed to manage the legal and practical aspects of developing a land grant. 

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