Hopalong Cassidy is a 3-book series with 4 primary works first released in 1910 with contributions by Clarence Edward Mulford, Louis L'Amour, and Tex Burns.
#1 of 4 in Hopalong Cassidy
1951 • 1 Reader • 4
#1 of 4 in Hopalong Cassidy
1951 • 1 Reader • 290 pages
#2 of 4 in Hopalong Cassidy
1992 • 3 Readers • 231 pages • 4