fair-haired boy vs one and only

fair-haired boy

noun

  • Someone's favourite, especially a young one; a blue-eyed boy (British), (Australian) 

one and only

noun

  • The most talented or famous person (within in a specific context) 

  • Only love, sole sweetheart. 

adj

  • Unique, one of a kind. 

How often have the words fair-haired boy and one and only occurred in a corpus of books? (source: Google Ngram Viewer )