found: National security choices for the next president, c1988: CIP t.p. (Thomas J. Ridge; cochairman, CSIS Working Group on Presidential National Security Choices)
found: Who's Who in America 1998, c1997: v. 2, p. 3608 (Ridge, Thomas Joseph, mem. 98th-103rd Congress, Pa. 21st dist.; Pa. gov. 1995-)
found: Affirmative action, 1998: cover (Tom Ridge, Governor, Commonwealth of Pennsylvania)
found: N.Y. Times, Oct. 9, 2001 p. B11 (former Gov. Ridge sworn in as Pres. Bush's director of Office of Homeland Security on Oct. 8, 2001; Ridge was Pa. gov. until last week)
found: Biographical directory of the United States Congress online, viewed September 17, 2012 (Ridge, Thomas Joseph, a Representative from Pennsylvania; born in Munhall, Allegheny County, Pa., August 26, 1945; elected as a Republican to the Ninety-eighth and to the five succeeding Congresses (January 3, 1983-January 3, 1995); Governor of Pennsylvania, 1995-2001; Director, Office of Homeland Security, 2001-2003; Secretary of Homeland Security in the Cabinet of President George W. Bush, 2003-2005)