Poppy vs Shrubya

Poppy

name

  • Former U.S. president George H. W. Bush 

  • A female given name from English, a flower name used since the end of the 19th century. 

Shrubya

name

  • Former U.S. president George W. Bush. 

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