Guérin started writing tales and short stories under his given name, as well as the pen names Guérin-Dulion and Léonide de Mirbel.
In 1829, he published Chants Lyriques et Autres Essais Poétiques.
Later in life, Guérin specialised as a historian, and became one of the historiographs of the French Navy in 1846.
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