"Ehrlichman Seeks a Pardon for Watergate Crimes". The New York Times. New York, New York. AP. August 15, 1987. Retrieved 2009-09-08. Two of the burglars of the Democratic headquarters, Bernard L. Barker and Frank Sturgis, were denied pardons by President Carter.
theguardian.com
Carlson, Michael (June 7, 2009). "Bernard Barker". The Guardian. Retrieved June 1, 2017.