History of Bronislaus’ brothers is more complicated as histories of his sisters. There is not many information about Leon and especially about Jerzy. Leon was a single and he lived in Poznań (Posen) where he was a banker. He is listed in two address books of Poznań from years 1926 and 1930.
Unfortunately there is no information about Jerzy. He lived probably in Gniezno but so far it is not discovered what position he held.