Mietje KONIJN
The geni link in your comment contains mistakes: Her first name is Mietje. She was born in Amsterdam, not in London. She was born in 1913 not in 1914:
https://collections-server.arolsen-archives.org/V/Ous_partitions/33/01020402/aa/ee/er/001.jpg
Father: Simon Konijn
See: