Early Wynn

Continuing from my previous post, and so to bridge the April 4th gap re:

•  "April 1(x2), 2, 3(x2), __, 5, 6/Date Sequence" pattern-cluster.  

Using the formula , we arrive at:

• 1999 – Early Wynn, American baseball player and sportscaster (b. 1920)
• 2001 – Liisi Oterma, Finnish astronomer (b. 1915)

Note from their wiki pages:

• Early Wynn Jr. (January 6, 1920 – April 4, 1999), nicknamed "Gus",
• Liisi Oterma (6 January 1915 – 4 April 2001)