The Happy Hollisters is a series of books that is aimed at younger children.  The series was published by Garden City and Doubleday from 1953 to 1970.  The series was written by Andrew E. Svenson under the pseudonym of Jerry West.

List of Titles:

  1. The Happy Hollisters
  2. The Happy Hollisters on a River Trip
  3. The Happy Hollisters at Sea Gull Beach
  4. The Happy Hollisters and the Indian Treasure
  5. The Happy Hollisters at Mystery Mountain
  6. The Happy Hollisters at Snowflake camp
  7. The Happy Hollisters and the Trading Post Mystery
  8. The Happy Hollisters at Circus Island
  9. The Happy Hollisters and the Secret Fort
10. The Happy Hollisters at Pony Hill Farm
11. The Happy Hollisters and the Merry-Go-Round Mystery
12. The Happy Hollisters and the Old Clipper Ship
13. The Happy Hollisters at Lizard Cove
14. The Happy Hollisters and the Scarecrow Mystery
15. The Happy Hollisters and the Mystery of the Totem Faces
16. The Happy Hollisters and the Ice Carnival Mystery
17. The Happy Hollisters and the Mystery in Skyscraper City
18. The Happy Hollisters and the Mystery of the Little Mermaid
19. The Happy Hollisters and the Mystery at Missile Town
20. The Happy Hollisters and the Cowboy Mystery
21. The Happy Hollisters and the Haunted House Mystery
22. The Happy Hollisters and the Secret of the Lucky Coins
23. The Happy Hollisters and the Castle Rock Mystery
24. The Happy Hollisters and the Cuckoo Clock Mystery
25. The Happy Hollisters and the Swiss Echo Mystery
26. The Happy Hollisters and the Sea Turtle Mystery
27. The Happy Hollisters and the Punch and Judy Mystery
28. The Happy Hollisters and the Whistle Pig Mystery
29. The Happy Hollisters and the Ghost Horse Mystery
30. The Happy Hollisters and the Mystery of the Golden Witch
31. The Happy Hollisters and the Mystery of the Mexican Idol
32. The Happy Hollisters and the Monster Mystery
33. The Happy Hollisters and the Mystery of the Midnight Trolls

Availability

The books in this series are generally easy to find at a low cost.  The higher-numbered titles are somewhat more scarce.  The final volume, The Mystery of the Midnight Trolls, is much more scarce than the earlier titles.