Trying to sort out who is related and who is not related!

Trying to sort out who is related and who is not related! Pauline Raczkiewicz arrived in the United States on April 25, 1917 from Poland. Her maiden name was the same as my grandmother’s married name, so I first had to sort out records related to differentiating her and my grandma Pauline (Skrobot) Raczkiewicz.) When I was starting out, it was confusing to find people with the same name. She was married to Anthony Nalbach and they lived at 7763 First Avenue in Grand Rapids, Michigan, 1920--very close to where my grandfather lived. I tried to determine if she was a sibling of my grandfather and was really stuck until I connected with Andrzej Dubiel (my newfound 2x cousin.) HIS grandmother was named Pauline Raczkiewicz. She was my grandfather’s sister and she never came to Grand Rapids. It is really nice to collaborate with others to figure all this out! By the way . . . I still do not know who Pauline (Raczkiewicz) Nalbach of Grand Rapids is!