- Author: G. Bethuys Author Record # 168616
- Legal Name: Espitallier, Georges-Frédéric
- Birthplace: Les Sables-d'Olonne, Vendée, French Republic
- Birthdate: 25 May 1849
- Deathdate: 23 February 1923
- Language: French
- Webpages: National Library of France, translatedsf.thierstein.net
- Used These Alternate Names: Claude Manceau
- Note: French military officer & writer. Also used the pseudonyms Claude Manteau & Pierre Ferréol.
- Author Tags: science fiction (1)
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Short Fiction
- A Professional Scruple [English] (1896) [only as by Claude Manceau]
- Cataclysme (1896)