Chapter 10 assesses the ways in which de Paul carried his preference for communal performance of Christian acts of piety and morality into associations that he did not found, promote, or run himself, so that he acted uniquely as a point of connection between three of them: the Lazarists, the Ladies of Charity of the Hôtel-Dieu hospital in Paris, and the influential Company of the Holy Sacrament. It uses three case studies to expose his interconnectedness, and his ability to capitalize on his relationship with each group in projects of charitable welfare: the provision of aid to war-torn regions of north-east France, the foundation of a galley hospital in Marseille, and the establishment of the General Hospital in Paris.