Taylor Sheridan's Yellowstone fans finally found peace after the identity of John Dutton III's (Kevin Costner) grandfather was revealed in the 1923 Season 2 finale.

Walmart founder's son John Walton, who was the world's 11th richest man was found dead shortly after taking off his flight ...

That question became a huge one because it would also imply who Kevin Costner's John Dutton directly comes from. This mystery ...