Who knows Hedwig Mentzen and Amalie Wnuczek?

1.
I am searching for relatives of Hedwig Mentzen.
She was born in 1882 in Steinbach/Bavaria. Her maiden name was Kahn.
She had got eight brothers and sisters. Some were able to emigrate.
Hedwig had been living several years in Krummhübel (Karpacz). There she had a small drugstore. In November 1938 she had to flee to Berlin.
Her last address was Billungstreet 8 in Berlin-Kaulsdorf.
Hedwig was deported to occupied Poland in March 1942. Her brother Benno Kahn was also murdered.
Who remembers Hedwig?

2.
Who remembers Amalie Wnuczek?
She was born 1883 in Krakow, lived many years with her mother Rosza (Rosa) in Berlin-Karlshorst, Rheinsteinstraße 9.
She worked as a piano teacher. Who took piano lessons?

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Dr. Barbara Töpfer
Chiffre 141322