Hopalong Cassidy is a fictional cowboy hero created in 1904 by the author Clarence E. Mulford, who wrote a series of popular short stories and twenty-eight novels based on the character.
In his early writings, Mulford portrayed the character as rude, dangerous, and rough-talking. Beginning in 1935, the character ? as played by movie actor William Boyd in films adapted from Mulford’s books ? was transformed into a clean-cut, on-screen hero. A total of sixty-six immensely popular films were released, only a few of which relied on Mulford’s original story lines. Mulford would later revise and republish his earlier works to be more consistent with the character’s new, polished, on-screen persona.
Beginning in 1950, Capitol Records released a series of Hopalong Cassidy “record readers”, featuring William Boyd and produced by Alan W. Livingston.
Hopalong Cassidy & the Square Dance Holdup, the 1950 cowboy western vinyl read-along record set (“Bozo the Capitol Clown approved”; based on characters created by Clarence E. Mulford) starring William Boyd (in the title role as Hopalong Cassidy), Andy Clyde (as California), Rand Brooks (as Lucky), and Topper (billed as “Himself”)