In 1960 , Greene became a book editor for the '' Dallas Times Herald '' ; and in 1963 , the '' Times Herald '' promoted him as Editor of the Editorial Page , a role he performed until 1965 . Of the Kennedy assassination , Greene wrote : Greene left the '' Times Herald '' in 1968 to pursue a PhD at the University of Texas at Austin and to devote more time to writing books . From 1968 to 1969 , Greene was the executive editor of the '' Southwestern Historical Quarterly '' , a publication of the Texas State Historical Association . In 1969 , he served as President of the Texas Institute of Letters while working on his doctorate at The University of Texas at Austin
Kennedy assassination
Assassination of John F. Kennedy
A. C. Greene Jr.