CLARENCE MULFORD (1883–1956) was an American author. Mulford spent his creative years writing a vast saga of interlocking novels and stories, most of them dealing with the Bar-20 ranch and the men who called it home, chief among them a certain Hopalong Cassidy. Many of these classic western stories were adapted for radio, feature film, television, and comic books.

“Hopalong Cassidy is one of the most enduring and popular heroes in frontier fiction. His legendary exploits in books, movies, and on television have blazed a mythic and unforgettable trail across the American West.”

-Louis L’Amour