Found 4 dossiers for Wildermouth before revolution ("Ancien Regime" is the ususal period in archives) 3 in military records, 1 in a special fund regarding "Emigration" (the nobles who escaped in germany until Napoleon's fall) 3 surnames (3 brothers?): Jean Ferdinand, Frédéric Auguste, Jean Henri; apparently all colonels. Their right name was "De Wildermouth", one was Baron
Regarding Jean Henry he was in regiment Bourbonnais Infanterie Condé (4 th special dossier) I have coordonnates, I can request these 4 dossiers in the afternoon;result probaly after 17 march because the room is full until this time. Read the dossiers found on internet and keep you informed.