Former teacher accused of murder. Perhaps a victim of a miscarriage of justice.
Sent a copy of his plan for establishing universal peace to Voltaire, who answered him in verse (1776).
Sent the manuscripts for this same project to Franklin (1779), who, after Gargaz’s liberation, printed the plan on his Passy press as Conciliateur de toutes les Nations d’Europe, ou Projet de Paix perpétuelle … par P.A.G. (Passy, 1782).
Corresponded with Jefferson and sent him his project.