Paul O'Neill,John Snow,Henry Paulson, Jr.
Outgoing Treasury Secretary John Snow, the former chairman of CSX ... And 
Snow's predecessor, Paul O'Neill, the former chairman of Alcoa , was... [DOC] [TLE] Eight Former U.S. Treasury Secretaries Gave the Case Against Brexit [PAR] Apr 20, 2016 ... ... aisle: George Shultz, Michael Blumenthal, Robert Rubin, Larry Summers, Paul 
O'Neill, John Snow, Henry Paulson Jr., and Timothy Geithner.