Abstract: In this thesis the nursing roles in respect of tuberculosis in New Zealand from 1928 to 1966 are identified, and then examined by contextualising them in relation to the changing social, political, demographic, scientific and technological environments in which the treatment and prevention of tuberculosis took place. The history of the various institutions is described in order to show some of the circumstances that led to the evolution of the roles of dispensary nurse, district nurse, school nurse, public health nurse, sanatorium nurse, and hospital nurse. 1928 to 1966 covers a sufficiently long period of intensive activity and change in the detection, treatment and research of pulmonary tuberculosis in New Zealand, to enable comparisons between nursing roles to be made. It was found that nurses had an individualised approach to their work. This was defined by the physical environments within which they worked, whether it was a hospital, sanatorium, dispensary, school or in a patient's home. Also, the medical treatments advocated and implemented by the medical practitioners, the rules and regulations which governed the various work areas, and the availability of staff, funds, facilities and resources all had an impact upon how nurses were able to work and how their respective roles developed. In addition, some of the factors which contributed to nurses getting tuberculosis and the initiatives to improve the nurse's conditions of work are examined, because these had an impact on the performance of the nurse's work and evolution of her role. Apart from practical nursing care, nurses also had a role in the on-going inspection, monitoring, notification, emotional support of patients and families, morale boosting and education. Each role had these components. The differences were in the time and emphasis given to each.