I had a grandfather from Grodno (Poland, now Belarus) named Simon Lew and my grandma from Bret Litowsk (now Brest, Belarus) name Jaie Kraviec.
They moved to Argentina in the 1930s. My father doesn't have brothers or sisters and don't know what happen to the family that stayed back in Poland, but would be great to find out some information.
My name is Marcelo and you can email me at mlew at du.edu
Thanks.