Living in a Diaspora commands an increased vigilance for the perpetuation of the founding elements of a culture. In this perspective, in a host country, the private sphere and its heritage constitute a privileged space for the preservation and expression of the exiled identity. This can be seen in domestic museums, such as those of Quebec’s Armenian community, where the composition of material and immaterial culture and the presentation of its contents are particularly revealing. From a collection of life narratives and object biographies, this article proposes to draw a portrait of these family-scale museum structures and their collections to understand how they function in the project of cultural transmission.