What an interesting story--I had some of it earlier. Bronislaw Szwarce was a Polish hero and it is said he influenced J.Pilsudski as well.
Born in France 1834 to Polish parents; engineer and political activist; took part in famous Januaary 1863 rising and sadly sent to Siberia.
His grave has a prominent place in Lyczakowski Central park in Lwow. Died 18th Feb. 1904. You can see a picture of it at http://pl.wikipedia.org/wiki/
Now regarding Jozef Szwarce--this is much more difficult. Please write to pani Katarzyna at k.janiak@...
to see if there is anything about your father.
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