Murray Bowen (31 January 1913 in Waverly, Tennessee – 9 October 1990) was an American psychiatrist and a professor in psychiatry at the Georgetown University. Bowen was among the pioneers of family therapy and founders of systemic therapy. Beginning in the 1950s, he developed a systems theory of the family. From 1954 to 1959, Bowen worked in the National Institute of Mental Health, Bethesda, Maryland, where he continued to develop the theory that would be named after him: Bowen Theory.[4] At that time, family therapy was still only a by-product of theory. Bowen did his initial research on parents who lived with one adult schizophrenic child, which he thought could provide a paradigm for all children. After defining the field of family therapy he started integrating concepts with the new theory. He claimed that none of this had previously been described in the psychological literature. What began the first year became known nationally in about two years.

From 1959 to 1990 he worked at the Georgetown University Medical Center in Washington DC as clinical professor at the department of Psychiatry, and later as director of Family Programs and founder of a Family Center.

• About Murray Bowen at The Bowen Center

Ernest L. Rossi, PhD, is an internationally renowned therapist, teacher and pioneer in the psychobiology of mind-body healing. The author of more than 24 professional books, Dr. Rossi worked with Milton Erickson for eight years and co-authored three classic volumes on therapeutic hypnosis with him. Rossi has also edited four volumes of Erickson's Collected Papers and four volumes of Erickson's Seminars, Workshops and Lectures. He has been conducting research in the psychosocial genomics of ultradian rhythms and their relation to mind-body healing and psychotherapy for over three decades.

• Profile at Ernest Rossi.com

Lewis R. Wolberg, M.D., has practiced psychiatry and psychotherapy for more than 50 years. he received his M.D. from Tufts College Medical School in 1930. He is the author, co-author, or editor of 26 books and has authored 35 book chapters and numerous papers. He is Founder of the Postgraduate Center for Mental Health in New York, with which he has been associated since 1945, and a Founding Fellow of the American Academy of Psychoanalysis. 

• Lewis Wolberg Wiki

Joseph Wolpe, MD, was a South African psychiatrist, one of the most influential figures in Behavior Therapy. Wolpe grew up in South Africa, attending Parktown Boys' High School. Joseph received his M.D. in 1948 from the University of Whitatersrand in Johannesburg, South Africa. He was Emeritus Professor fo Psychiatry and Former Director of Behavior Therapy Unity at Temple University Medical School. He was Professor of Psychiatry at the Medical College of Pennsylvania. One of the leading practitioners of behavior therapy, he has authored three books and co-edited two, and has more than 200 professional publications. He cofounded the Journal of Behavior Therapy and Experimental Psychiatry. He is receipient of the Distinguished Scientific Award for the Applications of Psychology from the American Psychological Association.

• Joseph Wolpe Wiki