Duvergier et Mihura, traducteurs ecclésiastiques du XVIIIe siècle

Many ancient Basque books only carry the initials of the name of their author. For example, "Gudu Izpirituala", dated 1750 is signed by Nl.Ih.Dr. which, in Vinson´s opinion, means Noble Jean Haraneder, Doctor. However the author considers that they stand for Noël-Joseph Duvergier. Another example is the author of "Andredena Mariaren Imitacionea", dated 1778, which is only signed "M. ....*" and which, according to and author of the article, would stand for Alexandre de Mihura