Armitage vs Penn

Armitage

name
  • A village in Lichfield district, Staffordshire, England (OS grid ref SK0816). 

  • An English habitational surname. 

Penn

name
  • A village in Chiltern district, Buckinghamshire, England. 

  • University of Pennsylvania 

  • A surname. 

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