This article deals with the category of ‘child of family’ and the way in which it is studied makes it easier to understand revolutionary citizenship more clearly. This category not only allows the precise description of the citizen known as the ‘head of the family’, but also, on the basis of the analysis of the archives of the constituent committee, encourages the study of the various stages that shaped the voter’s role. Finally, this study on the historical sociology of suffrage shows the complex relationship between the social effects of private law and electoral rights in 1792.