cloakroom attendant vs gentlemen's room

cloakroom attendant

noun
  • A person who works in a cloakroom (a room intended for holding guests' cloaks and other heavy outerwear, as at a theater or night club). 

gentlemen's room

noun
  • Any room intended for use by men 

  • A waiting room in a railway station or other public building, often including a separate lavatory. 

How often have the words cloakroom attendant and gentlemen's room occurred in a corpus of books? (source: Google Ngram Viewer )