Liselotte Wallenstein

May 1939 at Mannheim address, with inferred parents.

Somehow she got to Switzerland in April 1943:
https://www.ancestry.co.uk/discoveryui-content/view/20318:5499?tid=...

This record of French hidden jewish children may relate:
https://www.ancestry.co.uk/discoveryui-content/view/3850:5705?tid=&...

She emigrated to USA Sep 1946, joining her sister: https://search.ancestry.co.uk/cgi-bin/sse.dll?dbid=7488&h=302161899...

Searched Ancestry: nothing subsequent in US records found.
German address books have someone of this name.