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Related Clues:
- Agatha's contemporary
- --- Stanley Gardner
- Colleague of Agatha
- Halliburton of the Halliburton Company
- Mysterious first name
- Peer of Dashiell
- Creator of the secretary Della
- Character in Trollope's 'Phineas Finn'
- -- Stanley Gardner
- Gardner of fiction
- Peer of Agatha
- Mason creator Gardner
- Author __ Stanley Gardner
- Perry's penman
- First name in detective fiction writing