Abstract: This thesis explores the shortage of general hospital nurses in post World War II New Zealand between 1945 and 1955. Historical inquiry is used to identify the causes of the shortage and the response to the shortage by the Health Department, hospital boards and nurse leaders. Christchurch Hospital, administered by the North Canterbury Hospital Board, is used to illustrate the situation at one large, public, general hospital. Primary sources provided the majority of material which informed this thesis. Two themes emerge regarding the causes of the shortage of nurses: those that were readily acknowledged by nurse leaders and other health professionals at the time, and those which were less widely discussed, but which contributed to the nature of nursing work appearing less attractive to potential recruits. In response to the shortage the Health Department, hospital boards and the New Zealand Registered Nurses Association mounted several recruitment campaigns throughout the decade. As the shortage showed no sign of abatement the focus turned from recruitment to retention of nurses. While salaries, conditions and training were improved, nurse leaders also gave attention to establishing what nurses' work was and what it was not. Nurse leaders and others promoted nursing as a profession that could provide young women with a satisfying lifelong career. Due to these efforts, by 1955, this episode in the cycle of demand and supply of nurses had begun to improve.