Harold died of prostate cancer Feb. 4, 2012, at his home in Westport, Conn. He was 65.

He came to Princeton from Great Neck (N.Y.) North Senior High, where he was president of student government and captain of the tennis team. At Princeton he majored in history and ate at Campus. After Princeton, Harold earned a Ph.D. in clinical psychology at the University of Rochester. He was a highly regarded private practitioner in both Manhattan and Westport.

Harold was a Distinguished Life Fellow and president of the American Group Psychotherapy Association (AGPA). He led AGPA’s efforts to help thousands of people traumatized by the events of 9/11. He was a respected teacher, mentor, supervisor, and leader in the community of group psychotherapists, and he edited several books on group psychotherapy and clinical psychology, the most recent of which, On Becoming aPsychotherapist, was published in 2010 by Oxford University Press.

He is survived by his wife, Bonnie; children Nicole and Bradley; sister Cathy; and brother Mitchell ’73. To them all, the class extends deepest sympathy.

Undergraduate Class of 1968