Box vs Warden

Box

name

  • A village near Corsham, Wiltshire, England (OS grid ref ST8268). 

  • A surname. 

  • A village in Minchinhampton parish, south of Stroud, Gloucestershire, England (OS grid ref SO8600). 

Warden

name

  • A village and civil parish in south Northumberland, England (OS grid ref NY9166). 

  • A surname originating as an occupation for a warden. 

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