Pierre Lenoir, professor at the regional school of Rennes, taught the rudiments of fine art to him, and soon realised his young pupil's aptitude.
He obtained a government grant to continue his studies in Paris where he met his mentors Alexandre Falguière at the Ecole des Beaux-Arts, and Henri-Michel-Antoine Chapu[1] of the Académie Julian.
Both gave him a respect for truth in sculpture, a product of the wider trend of Realism associated with Jules Dalou and Auguste Rodin.
In 1907 Boucher created a multi-figure memorial to prominent Dreyfus supporter and human rights activist Ludovic Trarieux in Place Denfert-Rochereau, Paris.
Boucher also created uncontroversial memorial sculptures to distinguished cultural figures, such as Yves Guyot, Charles Le Goffic and the poet André Rivoire.
Called to bear arms with the rank of sergeant, he ended the war as a lieutenant, winner of the Croix de guerre, and suffering the effects of gassing.
Appointed Professor at the l'école des beaux-Arts, he continued to work on his art, devoting much of his time to creating memorials to the soldiers who died for France.
He is the creator of the monuments dedicated to the "Saint-Cyriens", to the marshal Joseph Gallieni of Verdun, to the American volunteers (in the Place des États-Unis, Paris), to the aviator Èdouard Mounier and others.
One of the objections of Breton nationalists to the earlier statue had been that it portrayed the duchess Anne of Brittany kneeling submissively before the King of France, so the new designs carefully stressed the equality of the figures.
The Union of Brittany and France, in the niche of the town hall of Rennes (1911), partially destroyed on August 7, 1932 by Breton nationalists.
War memorial representing a "Poilu" in the Cour du Mûrier at the École Nationale des Beaux-Arts de Paris.