Cherry Ames
1. Cherry Ames, Student Nurse (1943)
2. Cherry Ames, Senior Nurse (1944)
3. Cherry Ames, Army Nurse (1944)
4. Cherry Ames, Chief Nurse (1944)
5. Cherry Ames, Flight Nurse (1945)
6. Cherry Ames, Veterans' Nurse (1946)
7. Cherry Ames, Private Duty Nurse (1946)
8. Cherry Ames, Visiting Nurse (1947)
9. Cherry Ames, Cruise Nurse (1948)
17. Cherry Ames, Boarding School Nurse (1955)
18. Cherry Ames, Department Store Nurse (1956)
19. Cherry Ames, Camp Nurse (1957)
     aka The Clue of the Faceless Criminal
20. Cherry Ames At Hilton Hospital (1959)
     aka The Case of the Forgetful Patient
Cherry Ames' Book of First Aid and Home Nursing (1960)
21. Cherry Ames, Island Nurse (1960)
     aka The Mystery of Rogue's Cave
22. Cherry Ames, Rural Nurse (1961)
     aka The Case of the Dangerous Remedy
23. Cherry Ames, Staff Nurse (1962)
24. Cherry Ames, Companion Nurse (1964)
25. Cherry Ames, Jungle Nurse (1965)
26. The Mystery in the Doctor's Office (1966)
27. Ski Nurse Mystery (1968)
Cherry Ames (omnibus) (2005)

Vicki Barr, Flight Stewardess
1. Silver Wings for Vicki (1947)
2. Vicki Finds the Answer (1947)
3. The Hidden Valley Mystery (1948)
4. The Secret of Magnolia Manor (1949)
8. Peril Over the Airport (1953)
9. The Mystery of the Vanishing Lady (1954)
10. The Search for the Missing Twin (1954)
11. The Ghost At the Waterfall (1956)
12. The Clue of the Gold Coin (1958)
13. The Silver Ring Mystery (1960)
14. The Clue of the Carved Ruby (1961)
15. The Mystery of Flight 908 (1962)
16. The Brass Idol Mystery (1964)