Deaths Come in Three's

Recently listed to the Deaths in 2017 site are three people who have a common ground other than their recent deaths and notable person status:

• Jerry "Soupy" Campbell (July 14, 1944 – August 9, 2017) 73, football player
• Abdulhussain Abdulredha (15 July 1939^[1][2] - 11 August 2017), 
• Alois Bernhard "Alec" Eisenträger (16 July 1927 – 10 August 2017^[1]) 

Their birthdays generate a "July 14, 15, 16/ Date Sequence" pattern-cluster.