The term hospital social service is unfortunately not a very specific term, as it has come to be used to include a great variety of extra-mural service to hospital and dispensary patients. It has been used to designate such a variety of functions as a simple follow-up system to keep track of patients’ attendance at clinics, friendly visiting in the wards, various phases of public health nursing, a variety of administrative functions at admission desks and in the clinics, and medical-social case work. The fact is that all these various types of service are coming to be recognized as necessary to the improvement of hospital and dispensary service. All of them recognize the necessity of individualizing the patients and taking into account some of the social elements in the patients’ situation. Before we can discuss hospital social work intelligently, we need more specific terminology and definition.

I shall not attempt that now but shall choose for discussion the contribution that was made to the efficiency of medical treatment by the introduction of the trained social worker into the staff of hospitals and dispensaries. Visiting nursing in the homes of dispensary patients antedated the present hospital social work movement by several years and still remains in many cities the long arm of the hospital extending skilled nursing service and hygiene teaching to the patients discharged from the hospital or under supervision of the dispensary. Such service has long been recognized as essential to baby welfare and tuberculosis clinics and has stimulated the development of public health nursing organization in most of our cities.

Ida Maud Cannon was responsible for developing the first social work department in a hospital in the United States. Convinced that medical practice could not be effective without examining the link between illness and the social conditions of the patient Cannon diligently worked at creating the field of medical social work. During her long career, she worked as a nurse, a social worker, Chair of Social Services at Massachusetts General Hospital, author of a seminal book in the medical social work field, organizer of the American Association of Hospital Social Workers, consultant to hospitals and city administrations throughout the United States, professor and designer of a training curriculum for medical social workers.