I am researching my family history. I have the surname of Authier. I have researched it back to late 1500s, where the surname is DeLisle. Some of the children and Grand children are taking on the Gauthier surname as well. Some of them are Gauthier DeLisle surname. Was wondering if any one knows anything about the Surname and can give me insight on the migration of the name coming from DeLisle to Gauthier DeLisle to Gauthier to Gauthier Authier to Authier.