Cuba V... for Varadero

Continuing from my previous post, note the following excerpt from the MacGregor's post re "Our Trip to Cuba :

• Just beyond Matanzas lies Verdadero

A bit of a faux-pas I would say... there is no Verdadero in Cuba... they must mean Varadero.  Note from Varadero's wiki page:

• Tourism grew in the early 1930s as Irénée du Pont, an American millionaire, built his estate on the peninsula. Many famous and infamous people stayed in Varadero, for example: Al Capone.

So two leads to investigate:

• Irénée du Pont I (December 21, 1876 – December 19, 1963) 
• Alphonse Gabriel "Al" Capone (January 17, 1899 – January 25, 1947) 

First we have a "December 18, 19, __, 21/Date Sequence" patter-cluster (with December 18 being my sisters birthday); and a "January 17, 19, 21, 23, 25/ Uneven Number Date Sequence" pattern-cluster (with January 19 my brothers birthday, January 21 my daughters birthday, and January 23 the birthday of my new little grandson.