Mysteries of the Old West

In 1968, the film Bandolero! came out, starring James Stewart, Dean Martin, Raquel Welch; and George Kennedy played the sheriff, July Johnson. He had a deputy, Roscoe Bookbinder, played by Andrew Prine. James Lee Barrett did the screenplay, based on a story by Stanley Hough.

In 1989, Lonesome Dove made its debut, starring Robert Duvall and Tommy Lee Jones; Chris Cooper played the sheriff, July Johnson. He had a deputy, Roscoe Brown, played by Barry Corbin. Larry McMurtry wrote the story, and the screen play for the series was done by him and William Witliff.

Question: are there any more July Johnsons around, and do they have deputies named Roscoe?