This research, located at the point of convergence between the organizational identity studies and the social memory studies, aims to investigate the recurrent identity (re)construction of a private school (founded in 1969 and located in the city of Rio de Janeiro), through its collective mnemonic practices and actions. In order to deepen the understanding of the relations between identity and memory in the collective sphere, this work has proposed to investigate the two concepts from the social constructionist perspective, the result of a negotiation process among the members of the organization, influenced by different individuals, groups, management teams and other collectives. With regard to methodological procedures, the data collection used the sources from (a) interviews with members of the organization of different functions and hierarchical levels; (b) interviews with external members related to the organization in an indirect way; (c) collection of documents; and (d) nonparticipant observation. In relation to the data analysis, the flexibility of the thematic analysis was assumed in order to understand the proposed phenomenon, taking into account the influences of different actors and social contexts. Five key periods were identified, in which identity reconstruction was more explicitly required for the continuity of the organization s essence, and mnemonic practices and actions were then analyzed over these periods. In this way, it was possible to identify how the dynamic relationship (continuous social process of construction and reconstruction) between identity and memory contributed to maintaining the continuity, over fifty years, of the essence of the identity of Edem school.