bellhop vs errand boy

bellhop

noun
  • An employee of a hotel who carries a guest's luggage and runs errands. 

verb
  • To work as a bellhop. 

errand boy

noun
  • A male employed to run errands. 

  • Someone in a responsible position who performs relatively menial tasks for a senior manager. 

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