Marjorie Franklin was a psychiatrist and psychoanalyst who trained under Adolf Meyer and Sándor Ferenczi. She co-founded Institute for the Scientific Treatment of Delinquency (later the Portman Clinic), with Edward Glover, Grace Pailthorpe and Melitta Schmideberg. She developed a therapeutic concept, which she called "Planned Environment Therapy" (PET). In 1936 she established the first PET-focused community at the experimental Q Camp at Hawkspur, Essex for 'maladjusted' young men. The camp was short lived, but it was followed by a second Q Camp for maladjusted boys in the 1940s led by Arthur Barron. Franklin also created a second project, the Children's Social Adjustment (CSA), which also followed the PET principles. In 1966 Franklin founded the Planned Environmental Therapy Trust (PETT) with David Wills and Arthur Barron to promote research, discussion and training regarding the PET approach.