About Mania Liff
Mania Liff was Reuben Ainsztein's sister, also in Vilna.
Among the Jews from Vilna, driven to clear snow from train lines in a blizzard, was Mania Liff.
She saw a Jew give a piece of bread to a Russian. This was noticed by a German guard who at once shot dead both the Jewess and the Russian woman.
The Holocaust - Martin Gilbert, page 246