after the war a fair number of the Polish pilots who stayed in the UK were housed at Cark Airfield, Cumbria. Some of those then relocated to Lancaster and there are still a number of families in Lancaster descended from them.
It could well be worth contacting the Lancaster Polish Centre to see if they have details of any surviving pilots over here. They may have details of former colleagues in Poland
Address
Lancaster Polish Centre
Nelson Street
Lancaster
LA1 1PT