Historical clue formulations

• Brother to Groucho — 2025-12-16
• One of the Marx Brothers — 2025-04-27
• With 35-Across, actor who said "You can't fool me, there ain't no Sanity Clause" — 2018-07-24
• TV's "___ and the Man" — 2014-09-09
• Marx brother at a piano — 2012-08-07
• Speaker of the quote — 2007-07-25
• A Marx brother — 2005-05-12
• 1970's sitcom title character — 2004-11-21
• Brother of Zeppo — 2003-11-02
• 70's sitcom title character — 2002-06-29
• Harpo's interpreter — 2001-02-28
• City north of Sacramento — 1999-02-24
• Marx born Leonard — 1994-07-17