Any help would be greatly appreciated! I have been trying to find information about my great grandfather's origins for many years. He died in 1923 in a mining accident when his children were very young, so there are no family memories to draw upon.
I took a look at towns in The Geographical Dictionary of the Kingdom of Poland and other Slavic Countries
There are no towns with names similar to Dolowicz or Dołowicz in the second volume but if one looks for Dobrowicze on finds on page 78 of volume II, two entries, both in the powiat (county) of Wilejka which was in the Russian partition. Wilejka was in the Wilno Voivodeship but is now in Belarus.
The first entry is for a government village on the river Sierwiecz that had 8 homes and 56 residents; the second entry is for village with 12 homes and 120 residents and, if I understand correctly, the town was owned by the residents.