On 9 June 1907 during the revolt of the Languedoc winegrowers Le Roy set fire to the door of the courthouse of Montpellier to prevent the troops who had been confined inside from shooting at the demonstrators.

While with this fighter squadron, he shot down two observation balloons and three enemy airplanes His fifth victory came on 7 June 1918; that same day, he was so seriously wounded that he had to be medically evacuated.

[citation needed] In 1919 he married Edmée Bernard Le Saint, heiress of the Château Fortia, one of the most prestigious wine producing estates in the village of Châteauneuf-du-Pape in the Vaucluse department of southern France.

[citation needed] Several streets bear his name: in Paris in the 12th arrondissement where rue Baron-Le-Roy was created during the reconstruction of Bercy, two in Occitania in Pujaut and, in Saint-Victor-la-Coste, and another one in Provence-Alpes-Côte d'Azur in Châteauneuf-du-Pape.

Information from his son and Barbara Whittingham-Jones, 'A Visit to Chateauneuf-du-Pape', Ridley's Wine & Spirit Trade Circular, 16 January 1952.