David A. Karp, PhD, is professor emeritus at Boston College where he taught for 42 years.

Gregory P. Stone, PhD, who died in 1981, was professor of sociology at the University of Minnesota.

William C. Yoels, PhD, retired as professor emeritus at the University of Alabama-Birmingham.

Nicholas P. Dempsey, PhD, is assistant professor of sociology at Eckerd College, St. Petersburg, FL.