Education
University of New South Wales.
University of New South Wales.
Crittenden was educated Broken Hill High School and Barraba Central School. He was awarded a Bachelor from the University of New England and a M Com by the University of New South Wales. He was as a mathematics teacher from 1980 to 1983 and worked for the New South Wales Department of Education from 1983 to 1985 and the Department of Minerals and Energy from 1985 to 1991.