Graduation speeches by notable people can be found at the following links, including some by George W. Bush:
Graduation Speeches at Yahoo
Kurt Vonnegut Commencement addresses on-line
Humanity.org Commencement Speeches
Stephen Colbert Commencement Address
John F. Kennedy: American University Commencement Address
Johns Hopkins University: Commencement Speakers (1974 to Present)
Present Bush at St. Vincent College, May 2007
Lyndon Johnson at Howard University, June 1965
John F. Kenneday at Yale University, June 1962
Hillary Clinton, May 2005
