Painter Son of a lawyer, Thiery studied at the Notre-Dame college in Rethel before becoming a pupil of the landscape painter Eugène Damas. Having given up painting for a while for law studies, Thiery joined the courses of Jean-Léon Gérôme. Around 1910, he painted the chapels of Saint-Joseph and the Virgin Mary, as well as four stations of the Stations of the Cross for the Saint-Jean church in Montmartre. Huge tragedy on August 31, 1914: Eugène Thiery's parents perish in the great Rethel fire. In 1927, Eugène Thiery owes the frescoes of the choir and the two naves of the church of Nanteuil-sur-Aisne (the mutilations of the Second World War preserved only the Descent from the Cross in the back of the choir. of Christ surrounded by two angels ), later that of the belfry of Dreux on the Place Métezeau side. He exhibited at the Salon of French artists (honorable mention in 1904, third class medal in 1908, gold medal in 1923), at the Salon d'Hiver from 1912 to 1947 and at the Salon des Indépendants from 1928 to 1930, at the Society of Friends of the Arts of Bordeaux in 1939. He won the Albert Maignan Prize in 1920. We know of him the frescoes of the town hall of Rethel. In December 2011The town of Rethel organized an exhibition in tribute to his work to celebrate the 50th anniversary of his death.