Historical clue formulations

• Whistlers in the kitchen — 2026-09-22
• Ones always blowing off steam? — 2026-05-05
• Ones whistling while they work? — 2025-02-09
• Loud whistlers — 2024-12-29
• Whistlers of a sort — 2020-10-02
• Fish stew containers — 2009-04-14
• They whistle while they work — 2005-12-09
• Ma and Pa — 2003-04-03
• Brewing sites — 1999-05-31
• They sometimes whistle — 1998-01-23