The table below appeared as an appendix to the court decision in Filmvideo Releasing v. Hastings:


PR# Date Title of Motion Picture Min. CPR
Date
Title of Mulford Book Pages Screenplay Writers
1. 1935 Hopalong Cassidy Enters 56 1910 Hopalong Cassidy 392 Doris Schoeder-Harrison Jacobs
2. 1935 The Eagle’s Brood 65 1931 Hopalong Cassidy and the Eagle’s Brood 320 Doris Schoeder-Harrison Jacobs
3. 1935 Bar 20 Rides Again 66 1926 The Bar 20 Rides Again 337 Doris Schoeder-Gerald Geraghty
4. 1936 Call of the Prairie 65 1926 Hopalong Cassidy’s Protege 320 Doris Schoeder-Vernon Smith
5. 1936 Three on the Train 65 1921 The Bar 20 Three 317 Doris Schoeder-Vernon Smith
6. 1936 Heart of the West 65 1932 Mesquite Jenkins, Tumbleweed 317 Doris Schoeder
7. 1936 Hopalong Cassidy Returns 56 1924 Hopalong Cassidy Returns 310 Harrison Jacobs
8. 1936 Trail Dust 79 1934 Trail Dust 311 Al Martin
9. 1937 Borderland 84 1922 Bring Me His Ears 350 Harrison Jacobs
10. 1937 Hills of Old Wyoming 81 1933 The Round Up 312 Marice Geraghty
11. 1937 North of the Rio Grande 70 1925 Cottonwood Gulch 340 Jack O’Donnell
12. 1937 Rustler’s Valley 62 1924 Rustler’s Valley 333 Harry O. Hoyt
13. 1937 Hopalong Rides Again 67 1923 Black Buttes 318 Norman Houston
14. 1937 Texas Trail 61 1922 “Tex” 323 Jack O’Donnell
15. 1937 Partners of the Plains 73 1918 The Man From Bar 20 319 Harrison Jacobs-Gerald Geraghty
16. 1938 Cassidy of Bar 20 61 1929 Me an’ Shorty 285 Norman Houston
17. 1938 Heart of Arizona 71 1930 The Deputy Sheriff 296 Norman Houston
18. 1938 Bar 20 Justice 68 1912 Buck Peters, Ranchman 367 Arnold Belgarde-Harrison Jacobs
19. 1938 Pride of the West 56 1920 Johnny Nelson 354 Nate Watt
20. 1938 In Old Mexico 63 1927 Corson of the JC 340 Harrison Jacobs
21. 1938 Sunset Trail 70 1928 Mesquite Jenkins 306 Norman Houston
22. 1938 The Frontiersman 76 1907 Bar 20 382 Norman Houston
23. 1939 Silver on the Sage 70 1935 On the Trail of the Tumbling T 315 Maurice Geraghty
24. 1913 The Coming of Cassidy 438
25. 1911 Bar 20 Days 412
26. 1927 Hopalong Cassidy Takes Cards 269

Italics in book date indicates where date not given in appendix to court decision.

Books not listed in court decision:
Hopalong Cassidy Serves a Writ (1941; this was adapted as the movie Hoppy Serves a Writ, 1943)
The Orphan (1908)

There were 66 Hopalong Cassidy films in all.  This lists ends in 1939 (although the 1943 Hoppy Serves a Writ is mentioned in my supplementary notes).  There are 42 subsequent films not listed here.  The last Hopalong Cassidy film was released 1948.  (The lawsuit was limited to 23 films which Filmvideo threatened to distribute in competition with releases of the same films authorized by the licensee.  The other 43 Cassidy films were irrelevant to the verdict, thus it’s likely they’re unlisted for that reason.)