John Nelson & family

The young man with the war-bonnet is Nelson´s eldest son Yellow Horse, who performed many seasons in the show. The smallest children in the picture is his daughter Rose (who later took the stage name Princess Blue Waters), who proved to be a favorite of the Prince of Wales during Cody´s stay in London in 1887. Perhaps the photo was made at that time in London!?
— Dietmar Schulte-Möhring

Dated circa 1875. William F. Cody (center) with scouts.
S tanding on far left is John Nelson.