My great grandmother was Louise Delez married to Jean Voeffray.They lived in Salvan,Valais,Switzerland. Their son Francois Voeffray,born in 1879, married his first cousin Julie Bochatey and along with two of her brothers imigrated to Detroit,Michigan around 1906. What part of the U.S. did your people settle in? I have found people from Salvan in Colorado and California.If I find more I will e-mail you. It seems like their were some Fourniers and Gays in Colorado.