My Grandfather, Abraham Pront, born 1878, wrote on his
naturalization papers that he lived in Dumbia, Poland, Russia. I also
have postcards >from his brother Heshel, that show what appears to be
Dabiu (written in script), and Dabi_(looks like an o with a
horizontal line through the middle of it). Is there anyone who knows
what the name of this town might be? Where it may have been/still
is? I would sincerely appreciate any help. Thank you.