Born in Argentan 1869, died in Avignon 1922. Little is known about this painter. The Centre Pompidou in Paris possess a collection of watercolors of Thessaloniki and Aegean Macedonia made in the period 1916-1919. Some of these watercolors have been reproduced in the French Works War One magazines. He was probably a soldier in the Army of Orient in the Macedonian Front.
Source of information and photos:
https://www.centrepompidou.fr/fr/recherche/oeuvres?artiste=Charles%20Martel