cloakroom attendant vs ladies' cloakroom

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). 

ladies' cloakroom

noun
  • A cloakroom intended for use by women. 

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