Joseph Peter Grace was the longest serving CEO of public company and head businessman for the Grace Commission under which President's executive order?
The Grace Commission: The Private Sector Survey on Cost Control (PSSCC), commonly referred to as The Grace Commission, was an investigation requested by United States President Ronald Reagan, authorized in Executive Order on June 30, 1982. The Grace Commission:  Its head, businessman J. Peter Grace, asked the members of that commission to "be bold" and "work like tireless bloodhounds. J. Peter Grace:  He was president of the diversified chemical company for 48 years, making him the longest serving CEO of a public company.
Ronald Reagan