Block vs Kitty

Block

name

  • An English surname 

  • A Jewish surname 

  • A surname from German 

  • A surname. 

  • A surname from Dutch 

Kitty

name

  • A diminutive of Katherine and related female given names. 

  • A generic name for a cat. 

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