On 10 August 1876, at the age of 22, he was ordained a priest of the Congregation of the Holy Spirit.[2] After his ordination, he worked as an educator in the Collège Saint-Denis in Réunion, the Collège de Cellule, France and Pondicherry, India.[1] Le Roy first traveled to Africa in 1881—he accompanied an expedition to Bagamoyo, Tanzania, scouting for potential mission sites; he took the opportunity to write books and magazine articles, which were highly appreciated in Europe.[1]
He was appointed Vicar Apostolic of Gabon on 3 July 1892, with a titular bishopric (Alinda); on 9 October 1892 he was consecrated as apostolic vicar, which he held until 24 May 1896.[2][3] On 24 May 1896 he was appointed Superior General of his order. He was granted a titular archbishopric (Caria) on 13 May 1921. He retired as superior general on 18 June 1926, and died on 21 April 1938 at the age of 84.[2]
The Collège Saint-Alexandre in Gatineau, Canada, was named in honor of Archbishop Le Roy. It was Le Roy who sent Father Amet Limbour to Canada, with a mission to found a school of agriculture for French emigrants to Quebec.[1]
Coat of arms
The following blazon for Archbishop Le Roy's coat of arms is taken from Armorial des prélats français du XIXe siècle.[4]
Shield: Au 1 d'azur à la falaise d'argent mouvant du flanc dextre d l'écu, baignée d'une mer du même mouvant du flanc sénestre, de laquelle naît un soleil d'or surmonté d'une croisette latine du même (symbole de la lumière de l'Evangile qui se lève sur l'Afrique); au 2 de gueules aux emblèmes du S. E. d'argent (moins le rinceau et la gloire); à la bordure du tout de sable chargée de 14 coquilles d'argent (rappelant la Basse-Normandie et le Mont-Saint-Michel).
