Related Clues:
- Halliburton who founded Halliburton
- Contemporary of Agatha and Dashiell
- First name of Halliburton's founder
- Oilman Halliburton
- Gardner that sounds like a peer
- Contemporary of Ngaio
- Mystery writer -- Stanley Gardner
- Contemporary of Rex and Agatha
- Creator of Della and Perry
- Name on the cover of ''The Case of the Lucky Loser''
- 'Out of the Silence' novelist Cox
- Mystery novelist -- Stanley Gardner
- _____ Stanley Gardner
- Colleague of Agatha/Dashiell
- Queen of sleuthing