exhibitioner vs exhibitor

exhibitioner

noun
  • A student at secondary school or university who has been awarded an exhibition. The exhibition usually involves a financial prize and may include the right to wear a distinctive gown, especially at the University of Oxford. 

exhibitor

noun
  • Someone who organizes an exhibition. 

  • Someone who exhibits something. 

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