milkery vs milkhouse

milkery

noun
  • A place where animals are milked. 

milkhouse

noun
  • A building (or portion thereof) on a dairy farm where milk is collected, cooled, and stored temporarily, pending sale and shipment. 

  • A place where milk is processed into products such as butter or cheese; a dairy. 

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