He was director of the French Guiana penitentiaries under Governor Louis Tardy de Montravel.

[5] Loubère helped obtain stones in Biên Hòa of the right size for construction of the Saigon orphanage, which was built by a young Annamite for the Sisters of Saint Paul of Chartres.

[6] On 1 January 1869 Loubère was given command of the 1st naval infantry regiment in Martinique under governor Charles Bertier.

He replaced the acting governor Jean Antoine Alexandre Noyer, who had served from 6 January to 30 April 1870.

[8] He constructed roads with embankments, bridges, public buildings, sewers and a stone barracks, all of which were still mostly intact at the end of the World War II.

[10] Loubère used felons transported to French Guiana to work on improving communications in the colony.

On 29 September 1877 Loubère was replaced as governor of French Guiana by Marie Alfred-Armand Huart.