Probation practice, past and present, is under-researched in Ireland, with limited attention paid to the personal accounts of the people of probation such as administrators, probation officers, clients and rehabilitation workers. This article presents findings from the first phase of a project which aims to construct a comprehensive and multi-faceted historical account of probation practice in Ireland from the perspective of core stakeholders. It begins with an overview of its ‘formal’ history, before presenting key findings from interviews with probation officers who began work in the 1960s and 1970s. The core objectives of the project are to shed light on probation officers’ occupational identities, map the probation sub-field, and bridge the ‘governmentality gap’ between official and frontline narratives; goals that are achieved through the application of an oral history methodology. A thematic framework of analysis is employed in order to better hear the individual and collective voices at the frontline of probation in Ireland during the timeframe.