hers vs him

hers

pron
  • That which belongs to her; the possessive case of she, used without a following noun. 

him

pron
  • Following a preposition. 

  • With nominative effect: he, especially as a predicate after be, or following a preposition. 

  • With dative effect or as an indirect object. 

  • With accusative effect or as a direct object. 

noun
  • A male person or animal. 

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