My mothers family is the Nau family you are researching.
Richard constantine Nau father of Richard Nau and John Nau
and Theresa Nau.Theresa is the aunt of Marie Nau. My wife is Mabel Trautz Chadwick sister of Ernest Trautz who arried Marie Nau (my cousin)
PSu may call me at (8560 629-7627
or e-mail at Lemab39@comcast.net