I have the following info for my husband's family -
Ludwig Kalwa of Poland had the following children -
Maciej Kalwa b. 1899 Szreniawa, Poland
In 1922 in Szreniawa Maciej married Anna Rusek and had five sons -
Lucjan b. 1924
Zygmunt b. 1926
Jozef b. 1928
Eugeniusz b. 1930
Romek b. 1932
During WWII the family was split up with Anna and the boys being transported to Russia. Eventually after the war, Anna and her sons made it to England. Anna, shortly before her husband's death in 1973 was able to return to Szreniawa to be reunited with her husband.
Anna and Maciej's sons stayed in England and started families of their own. One son, Jozef went to the US in the 1960s with his family. He now has 10 grandchildren!