Hi again,
I'd write to the Standesamt (office for civil registration" in Villmar (Aumenau was incorporated) and ask for a certified copy from the birth register for your grandmother from 22 Sept 1935 (in German: "beglaubigte Abschrift aus dem Geburtenregister".
You must prove your direct descendancy by adding your birth certificate and that of your father and a copy of your passport or driver's licence.
That birth certificate will show if she later married and which children she has. If she is no longer alive there will be a note on the record.
The address is:
Standesamt
König-Konrad-Str. 12,
65606 Villmar
The registrar's name is:
Ingrid Pohl
Tel.: 0049-6482/6077-20
Fax: 0049-6482/6077-18
E-Mail:
ingrid.pohl@villmar.deI'd write an email first and ask what info/records the lady needs, how much the fees are and how you can pay the fees.
If you need help feel free to ask me.
Good luck
Gaby