Sorry, I don't speak Polish. I'm studying the figure of Jozef Jonski. He was born in Lodz in 1912 (father: Wawrzyniec, born in 1891; mother: Emilja Geller (o Gellert), born in 1882). He married a girl named Regina, and they had a daughter called Wiesia. Jozef Jonski was interned in Dachau concentration camp and survived. Later, he married an spanish woman and died in Barcelona (Spain) in 1992. I have not more information. I wonder if your Jonski and mine are related.
Best wishes,
Florenci Barniol (florenci.barniol[małpka]gmail.com)