Marianne Walters was the Founder and Director of the Family Therapy Practice Centre in Washington DC. During and after her tenure as Executive Director of the Training Centre at the Philadelphia Child Guidance Clinic, she held faculty positions at several schools of Social Work and Departments of Psychiatry in the USA. She co-led the influential Women's Project in Family Therapy - begun in 1977 - with Betty Carter, Peggy Papp, and Olga Silverstein. Described as 'an icon of the feminist movement' on her death in 2006, Peggy Papp wrote, in her obituary in Family Process, of Marianne's 'feminist social justice approach' describing 'many of her ideas on gender, marriage and parenting (as) revolutionary, compelling us to re-evaluate some of our most basic assumptions regarding family relationships.'