stage manager vs trouper

stage manager

noun
  • A person responsible for the organization of a stage production, and who is in charge of the stage during the performance 

trouper

noun
  • A member of a theatrical company (a troupe). 

  • A reliable, hard-working and unselfish performer; one who considers the troupe before themselves. 

  • A veteran performer. 

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