I can see that in Dec 1915 Leonie is looking for her mum and she is listed a few times in 1916 too. In both cases Leonie seems to be living in “Pozsony”(?).
I’ve seen various German marriage events where Jews converted to Christianity in order to marry a “gentile”, so I’m wondering whether that might have been the reason for Leonie’s conversion. Additionally, her mum seemed to have been in Vienna in 1915 and also in 1941 at the time of her probable death, so I would not be amazed if Leonie had remained in Vienna after 1919.
In that case there could be a Viennese church marriage for Leonie around 1920 (I believe civil marriages had not started yet), but unfortunately there were so many churches in Vienna and no central index currently. If we could determine the area where she (and mum?) had been living, the number of possible churches might be able to be narrowed down.
Currently I can’t see any indication that she might have emigrated from Europe.
