I can do this much for you without going to a library. You’re not going to find a good answer on the internet because so much of that region is still not completely digitized and on the internet.

There were SEVERAL towns named Weissig (you’ll also see it written Weißig because the Germans use a special letter ß in place of a double S). There were several towns named Weissig on the Oder. To find YOUR town, I would suggest contacting the one source in this country that has a complete set of gazetteers of Poland from pre-war years…that’s the Polish Genealogical Society of America and the Polish Museum in Chicago.

It’s run by volunteers, so have a small amount of patience with them. But they are EXTREMELY knowledgeable about Poland, its history, geography, languages, dialects and towns. There is a wonderful professor from Loyola University who is also available to them who is available to help them in their research.
E-mail:

Here’s the separate link to the Polish Museum of America.
…and to the library at the museum:

Beyond that, I can help you find the current towns (and there are still many) name Weissig. They’re all on the German side of the border, but still within the boundaries of the former principality of Prussia.=&address=&city=weissig&zipcode=