| 1. | V1 | #1 | Win 1938 | Ki-Gor—King of the Jungle | |
| Byline change to “John Peter Drummond”: |
| 2. | V1 | #2 | Sum 1939 | Ki-Gor—and the Stolen Empire | |
| 3. | V1 | #3 | Fall 1939 | Ki-Gor—and the Giant Gorilla-Men | |
| 4. | V1 | #4 | Win 1939 | Ki-Gor—and the the Secret Legions of Simba | |
| 5. | V1 | #5 | Spr 1940 | Ki-Gor—and the Forbidden Mountain | |
| 6. | V1 | #6 | Sum 1940 | Ki-Gor—and the Cannibal Kingdom | |
| 7. | V1 | #7 | Fall 1940 | Ki-Gor—and the Paradise That Time Forgot | |
| 8. | V1 | #8 | Win 1940 | The Empire of Doom | |
| 9. | V1 | #9 | Spr 1941 | Lair of the Beast | |
| 10. | V1 | #10 | Sum 1941 | Ki-Gor—and the Temple of the Moon God | |
| 11. | V1 | #11 | Fall 1941 | White Savage | |
| 12. | V1 | #12 | Win 1941 | Tigress of T’Wanbi | |
| 13. | V2 | #1 | Spr 1942 | Slaves For the Renegade Sultan | |
| 14. | V2 | #2 | Sum 1942 | Blood-Priestess of Vig N’Ga | |
| 15. | V2 | #3 | Fall 1942 | The Cannibal Horde | |
| 16. | V2 | #4 | Win 1942 | The Devil’s Death Trap | |
| 17. | V2 | #5 | Feb 1943 | Voodoo Slaves For the Devil’s Daughter | Robert Turner |
| 18. | V2 | #6 | Apr 1943 | Eyrie of the Golden Goddess | |
| 19. | V2 | #7 | Sum 1943 | Caravan of Terror | |
| 20. | V2 | #8 | Fall 1943 | Death-Kraal of the Elephants | |
| 21. | V2 | #9 | Win 43-44 | Stalkers of the Dawn World | |
| 22. | V2 | #10 | Spr 1944 | Cobra Queen of the Congo Legions | |
| 23. | V2 | #11 | Sum 1944 | The Monkey Men of Loba-Gola | W. Scott Peacock? |
| 24. | V2 | #12 | Fall 1944 | Bride of the Serpent God | W. Scott Peacock? |
| 25. | V3 | #1 | Win 1944 | Land of the Lost Safaris | W. Scott Peacock? |
| 26. | V3 | #2 | Spr 1945 | The Silver Witch | W. Scott Peacock? |
| 27. | V3 | #3 | Sum 1945 | Huntress of the Hell-Pack | W. Scott Peacock? |
| 28. | V3 | #4 | Fall 1945 | The Golden Beasts of Zuli’Maen | |
| 29. | V3 | #5 | Win 1945 | Slave Brides For the Dawn-Men | |
| 30. | V3 | #6 | Spr 1946 | The Monsters of Voo Doo Isle | |
| 31. | V3 | #7 | Sum 1946 | Death Seeks For Congo Treasure | |
| 32. | V3 | #8 | Fall 1946 | Safari For Black Ivory | |
| 33. | V3 | #9 | Win 1946 | Blood-Gold of B’tonga | |
| 34. | V3 | #10 | Spr 1947 | Where Man-Beasts Prowl | |
| 35. | V3 | #11 | Sum 1947 | Warrior-Queen of Attila’s Lost Legion | |
| 36. | V3 | #12 | Fall 1947 | The Diamond Fangs of M’mubi M’ni | |
| 37. | V4 | #1 | Win 47-48 | The Seven Silver Skulls of L’Gonda | |
| 38. | V4 | #2 | Spr 1948 | Slave of the Jackal-Priestess | |
| 39. | V4 | #3 | Sum 1948 | Cromba Has a Thousand Spears | |
| 40. | V4 | #3 | Sum 1948 | Ki-Gor—King of the Jungle [reprint of #1] | |
| 41. | V4 | #4 | Fall 1948 | The Golden Claws of Raa | |
| 42. | V4 | #3 | Win 48-49 | The Lost Beasts of Ta’Tamba | |
| 43. | V4 | #4 | Spr 1949 | Nirvana of the Seven Voodoos [reprint of #3] | |
| 44. | V4 | #5 | Sum 1949 | Safari of the Serpent-Slaves | |
| 45. | V4 | #8 | Fall 1949 | The Mad Monster of Mu-Ungu | |
| 46. | V4 | #9 | Win 49-50 | Sword of Sheba | |
| 47. | V4 | #10 | Spr 1950 | Lost Priestess of the Nile | |
| 48. | V4 | #11 | Sum 1950 | The Beast-Gods of Atlantis | |
| 49. | V4 | #12 | Fall 1950 | Voodoo Slaves For the Devil’s Daughter | |
| 50. | V5 | #1 | Win 1950 | Flame-Priestess of Carthage | |
| 51. | V5 | #2 | Spr 1951 | The Monkey-Men of Loba-Gola | |
| 52. | V5 | #3 | Fall 1951 | The Devil’s Death Trap | |
| 53. | V5 | #4 | Win 51-52 | Blood Priestess of Vig N’ga | |
| 54. | V5 | #5 | Spr 1952 | Night of the Wasuli Death | |
| 55. | V5 | #6 | Fall 1952 | The Monster of Voo Doo Isle | |
| 56. | V5 | #7 | Win 52-53 | Caravan of Terror | |
| 57. | V5 | #8 | Spr 1953 | The Silver Witch [revision of #26] | |
| 58. | V5 | #9 | Fall 1953 | Slave-Caverns of Molundu | |
| 59 | V5 | #10 | Win 53-54 | Fane of the Python Priestess | |
| 60. | V5 | #11 | Spr 1954 | White Cannibal | |
