Historical clue formulations

• Indy racer Al or Bobby — 2026-07-13
• Al ___, four-time Indianapolis 500 winner — 2020-06-29
• Indy racer Al or Bobby — 2018-12-03
• Last name of three Indianapolis 500 winners — 2014-11-06
• On-track Bobby — 2014-08-10
• Surname appearing nine times in a list of Indy 500 winners — 2013-05-26
• Al of auto racing — 2013-02-25
• Big name at Indy — 2013-01-20
• Auto-racing family name — 2012-11-14
• Albuquerque's ___ Racing Museum — 2012-08-04
• Legendary racing name — 2012-05-02
• Al who won four Indy 500s — 2011-08-01
• Indy 500 legend — 2011-07-03
• Four-time Indy winner — 2007-11-04
• Racing family surname — 2007-05-11
• Big name in auto racing — 2006-11-05
• Racer Al — 2006-03-05
• Indy-winning Al, Jr. or Sr. — 2004-06-28
• Four-time Indy winner — 2004-06-24
• Family name at Indy — 2004-06-02
• Big name at Indy — 2001-11-06
• Al of Indy — 2001-08-06
• Family name with a checkered past? — 2001-07-08
• 1994 Indy 500 winner — 2000-12-20
• Family name at Indy — 2000-08-01
• German pronoun — 2000-02-18
• Family name in auto racing — 1999-11-04
• Auto racer Al — 1999-05-16
• Racing great Al — 1998-11-09
• Racer Al — 1996-09-23
• One of three Indy winners — 1996-04-21
• Big name in auto racing — 1996-01-04
• Indy winner in 1992 and '94 — 1995-09-17