One of Murphy's Law of Genealogy...
The town clerk you wrote to in desperation, and finally convinced to give you the information you need, can't write legibly and doesn't have a copying machine.
[S451] DESCENDANTS OF JOHANN LANG, Schaefer, Helen, (1993 and 1997, Helen Schaefer, Dallas, Texas, 1993 copy obtained from Alton Buehring, Odem, Texas), p. 3 [Schaefer pp. 41-47, 92-95], 25 Sep 1993.