My Mom's last name was Cegelski (apparently the Americanized version of Cegielski).
Her grandparents came to the US and lost contact with their relatives in Poland. My mom (deceased) never even knew for sure from which part of the country her grandparents came from.
Now, I know this is a fairly common last name, and that there is even a factory in Poznan and railway cars that bear this name, but if anybody knows a Cegielski personally, and could introduce me to them, then that would be a good place to start.
I have some of the name of my Mom's grandparents ancestors, so I am not starting at zero, but it would help to find a local contact with the same last name who might be able to start me off in the right direction.
Thanks in advance, and have a pleasant weekend!! :)