Margarethe Scheiber

cf. actual IKG-Wien birth registration of son Erich ...

Rudolf was apparently married twice.

1st. wife: Margarethe KOHN.

The couple divorced.

Basic divorce data from IKG-Wien archives courtesy of www.genteam.at

Nr. 7664
Jahr 1920
Zahl 438
Datum der Scheidung 31.08.1920
Mann Familienname Scheiber
Mann Vorname Rudolf
Mann Herkunft Wien
Frau Familienname Kohn
Frau Vorname Margarethe
Frau Herkunft Ung.Brod
Trauungsort Göding
Trauungsdatum 16.04.1905

After the divorce, it appears that Rudolf married again.

2nd. wife: Frieda ?

She is noted as having been deported from the same Vienna address to the same destination ...