I'll be a son of a gun vs oh my lanta

I'll be a son of a gun

intj

  • Expressing surprise or disbelief. 

oh my lanta

intj

  • An exclamation of surprise, excitement or astonishment: oh my God! 

How often have the words I'll be a son of a gun and oh my lanta occurred in a corpus of books? (source: Google Ngram Viewer )