Kwiatkowski, Jane. "A Principled Man", Buffalo News, July 1, 1990. Accessed March 27, 2018. "Was getting tough the answer for Joe Clark? The former high school principal and Army drill instructor made his name nine years ago in Paterson, N.J., as a hard-nosed disciplinarian.... All you have to do is call Central High School in Newark. That was an all-white school, and ironically I was No. 6 in my class." (subscription required)