Related Clues:

• Gardner of mysteries
• Whodunit first name
• Energy company founder Halliburton
• Mystery writer __ Stanley Gardner
• Creator of a clever Belgian
• 'Phineas Finn' character Barrington ___
• A first name in mysteries
• First name in legal fiction
• Novelist Christie
• Creator of D.A. Hamilton
• He dreamed up Perry and Della
• Halliburton who founded Halliburton
• Contemporary of Agatha and Dashiell
• She created Hercule
• First name of Halliburton's founder