Source: Kaletzki, Charles Hirsch. Official history USA Base Hospital No. 31 of Youngstown, Ohio: And Unit G of Syracuse University. Syracuse, NY, Craftsman Press, 1919.
Hotel Martin Aîné, on the same street [as the Hotel Continental], was a four-story building of brick and sandstone. Part of the lower floor had been retained by the owners for private use. The other part had been used as a dining room. A single corridor divided the rooms on the upper floors, the rooms being about the same size as those at the Continental. A three-story annex in the court contained several small rooms, not particularly desirable for hospital purposes. On the north side of the court a small structure housed the kitchen. [Kaletzki, p. 33]
Six subsidiary laboratories were established in the following hotels respectively: the Cosmopolitan, the Providence, the Royal, the Martin Aîné, the Continental and the Harmand. Enlisted men were trained to do clinical pathology. These men were selected from medical students, pharmacists and prospective medical students. [Kaletzi, p. 159]
Today, the building which once was Hotel Martin Aîné houses the Contrexeville Hôtel de Ville (city hall.)