I am not surprised that Czersk has numerous persons by the name of Fierek as my father was the youngest of 13 !
I have also been made aware that my grandfather swapped his nationality to become German and many of my fathers brothers favoured differing political views.
So as a family they were very divided.
After his capture in Baden or Maestrich my father ended up in Scotland and took back his Polish nationality.
The history I am trying to piece together is followiing the battle of Merville ,his capture and resettlement in Scotland and Plymouth UK.
Any further information gratefully received. Thanks Fierekk