He was also involved in politics, serving as town councilor and later mayor of Chemilly, Allier, and was founder of the Gazette de l'Allier newspaper.

[1][2] His botanical works include Flore populaire de l'Allier.

In his last years of life, Olivier was a member of the Friends of the Natural History Museum Paris, founded 1907.

[3][4][5] In 1922, thus eight years after Olivier's death, the editorial board of the journal Revue scientifique du Bourbonnais founded the "Bourbonnais Scientific Society for the Study and Protection of Nature" (Société scientifique du Bourbonnais pour l'étude et la protection de la nature).

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