Historical clue formulations

• One of the Twelve Apostles — 2020-02-27
• Steel magnate Carnegie — 2014-06-10
• Merry-___ (clown) — 2013-01-05
• English royal — 2012-12-23
• Name shared by two U.S. presidents — 2012-06-02
• The Carnegie of Carnegie Mellon University — 2009-06-02
• First name of two U.S. presidents — 2006-11-08
• With 40- and 51-Across, composer of 29-Down/60-Across, as well as 63-Across — 2006-01-10
• Fergie's ex — 2005-06-21
• One of the Windsors — 1999-10-30
• President Jackson or Johnson — 1997-06-23
• Hurricane of 1992 — 1994-06-13
• Hurricane of 1992 — 1994-03-11