 He donated a statue of Pope Leo XIII to The Catholic University of America in 1891.Loubat contributed monetary funds towards the founding of the Musée d'Ethnographie du Trocadéro and Musée de l'Homme in Paris.Loubat also donated to the American Museum of Natural History a large collection of Mexican archaeological artifacts assembled on his behalf by Edward Seler in the State of Oaxaca, Mexico; a series of casts of the original Cotzumalhuapa sculptures from the ruins of Santa Lucía Cotzumalguapa, Guatemala, kept in the Ethnological Museum of Berlin; a photographic copy of the "Codex Legislatif," an ancient Aztec codex, preserved in the Library of the Chamber of Deputies, Paris; and a facsimile of the "Codex Vaticanus, No.