Brother vs mensch

Brother

noun
  • Title of respect for an adult male member of a fraternal/sororal organization, or comrade in a movement, or even a stranger using fictive kin. 

  • A title used to personify or respectfully refer to concepts or animals. 

  • Title of respect for an adult male member of a religious or fraternal order. 

mensch

noun
  • A person (chiefly male) of strength, integrity, and honor or compassion. 

  • A gentleman. 

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