At one point Carter Whitney (Duane Eddy) plays a song on a harmonica. Duane Eddy is a noted musician and guitarist in real life. He was inducted into the Rock and Roll Hall of Fame in 1994.
The fictional Darrow-Tyler feud originated in Kentucky. This episode was filmed around Lone Pine, California. The state of Kentucky is 1,600 miles to the east of Lone Pine, and eastern Kentucky, where the real life Hatfield and McCoy feud originated is 2,000 miles away from Lone Pine.