A 1963 memo from J Edgar Hoover says the FBI informed HW Bush a member of the CIA about the reaction of the Cuban community to the Bay of Pigs. Bush was likely working for the CIA starting in 1960-1961 using his oil business to cover his clandestine activities.
There is a famous picture of Bush Senior putting Him right in the thick of the aftermath of the assassination.
A blurry picture that could have been anybody.