The present study seeks to contribute to the advancement of knowledge in the area of Organizational Studies through the analysis of the constitution of the Memorial São Paulo (MRSP) within the social constructivist paradigm from a relational and critical perspective proposed by the ANTi-History approach. By assuming the organization as a verb, an emerging phenomenon, unfinished and in constant transformation and no longer as a noun static, representative, coherent, neutral and discreet, in accordance with the Organizing precepts, one can bring to light the negotiations and maneuvers employed by the different actors involved, as well as contribution of each of these to the constitution of the MRSP. Thus, highlighting and giving transparency to the socio-political and power relations that are subjacent to the constitution of an organisations such as the MRSP, as well as the on-going process of (re) configuration and resignification of the space as a place of memory dedicated to resistance, only increase the importance of looking more closely at the intentionalities associated with that which was recovered and the interpretations of the past according to the agendas and interests of certain actors. The analysis and the triangulation of several sources, associated with the reflexive and critical posture required by an ANTi-History researcher, allowed to identify, recoup and demonstrate the actions and implications of a multiplicity of actors, promoting a deeper and more detailed contextualization of the analysis by removing the veil of apparent simplicity of the organization and, finally, revealing possible cases of effacement and silencing.