This article seems to tie a bit together. Bush avoided politics until Tillerson. Praised him to Corker.
Bush = 43. Q's "map currently has 43 confirmed connection"? Maybe not 43 as in a number but 43 as in who are Bush's connections to current admin?
https:// www.dallasnews.com/business/exxon-mobil/2016/12/21/exxons-rex-tillerson-brings-trump-bush-worlds-together