Historical clue formulations

• Cover girl? — 2026-01-07
• Heroine of novels set at Lilac Inn, Shadow Ranch and Red Gate Farm — 2023-07-21
• Amateur detective in 1967's "The Clue in the Crossword Cipher" — 2013-05-14
• "The Bungalow Mystery" solver — 2009-11-07
• Character who first appeared in "The Secret of the Old Clock" — 2009-05-26