Alexandre Le Roy was born on 19 January 1854 in Saint-Senier-de-Beuvron, France, the son of Norman farmers.
Le Roy received a secondary education at the Abbaye Blanche in Mortain.
He went on to study philosophy at the Seminary of the Diocese of Coutances.

On 10 August 1876, at the age of 22, he was ordained a priest of the Congregation of the Holy Spirit.
After his ordination, he worked as an educator in the Collège Saint-Denis in Réunion, the Collège de Cellule, France and Pondicherry, India.
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.

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.
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.

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.
Alexandre Le Roy was born on 19 January 1854 in Saint-Senier-de-Beuvron, France, the son of Norman farmers. Le Roy received a secondary education at the Abbaye Blanche in Mortain. He went on to study philosophy at the Seminary of the Diocese of Coutances.
On 10 August 1876, at the age of 22, he was ordained a priest of the Congregation of the Holy Spirit. After his ordination, he worked as an educator in the Collège Saint-Denis in Réunion, the Collège de Cellule, France and Pondicherry, India. 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.
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. 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.
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.
Alexandre Le Roy