 He was Minister for Information Technology and Minister for Forestry from December 1997 to April 2003 and Minister for Western Sydney and Minister for Energy and Utilities from April 1999 to April 2003.Yeadon was one of two Deputy Chancellors of the University of Western Sydney (now Western Sydney University) from 2008 to 2013.He had first joined the Board in 2003, served three terms as a Board member and was awarded an honorary degree by the University in 2014.