Being interned in Stalag VI B suggests that he was taken Prisoner during the very early days of the war - in fact by about 17th September 1939 which is the point when the Germans had taken most of Western Poland and the Russians came in from the East. With Neu Versen being near the Dutch border, he is likely to have been liberated not too long after D-Day and would have been one of the earlier prisoners to arrive back in the UK. Many of these were housed in former British or American barracks that had been vacated by troops taking part in the D-Day landings and those following in the weeks afterward. They were not immediately placed in camps run by the Polish Resettlement Corps but were placed in camps reserved for displaced persons.
Relatively few of these men's records survived but you may find something in the Sikorski Institute records in London - a previous poster has given you that address. There may be something in the records of MI 9 which was debriefing of former POWs at the National Archives but I think most of these were Poles who had served in Polish units under the operational command of the British forces. You might also find something under his name on the Kresy-Siberia memorial wall - this covers a huge number of Poles, both military and civilian, even those who were not deported to Siberia.
It would be helpful if you could give us his name, date of birth and whether he was army, navy or air force and where in Poland he originated from. I specialise in Polish Air Force but I will try to help you if you can give me this information.
