The Winchesters: 'Supernatural's Men of Letters, Explained 

collider.com -BY MICHAEL JOHN PETTY -Before 'The Winchesters' premieres this fall, we've brushed up on the 'Supernatural' lore to reveal all we know about the Men of Letters.
الفاظ مطلوبہ: the winchesters, supernatural's men of letters, explained, supernatural