That's a tradesman, that is to say, he's the restaurant keeper, Vereshchagin.
His father was a tradesman of limited means, but of studious character and active mind.
English impostor, was probably the son of a tradesman at Oxford.
The family appear to have always belonged to the yeoman-tradesman class; their special home was the town of Saint-Loup. Voltaire was the fifth child of his parents - twin boys (of whom one survived), a girl, Marguerite Catherine, and another boy who died young, having preceded him.