Jean GuillaumeJean Guillaume was a Belgian writer in Wallon. He investigated this language and he published in French Œuvres Poétiques Wallonnes. Among his associates were Hubert Haas and Georges Smal.WorksDjusqu' au solia Gregnes d' awousse Aurzîye Œuvres Poétiques Wallonnes ''Padrî l's-uréyes''