Jean Jacques Rousseau was an etcher and painter of genre, landscape and animals.
Rousseau studied with Desportes and Henri Lehmann at the École des Beaux-Arts in Paris and exhibited at the Salon from 1876. He corresponded with Whistler in 1901 in connection with an exhibition at the Galerie Georges Petit.
He became a Chevalier de la Légion d'honneur in 1903.
Bénézit, E., Dictionnaire des Peintres, Sculpteurs, Dessinateurs et Graveurs, 8 vols., Paris, 1956-1961; Thieme, Ulrich, Felix Becker, and Hans Vollmer, Allgemeines Lexikon der bildenden Künstler von der Antike bis zur Gegenwart, 1960, vol. 29, p. 114.