In my opinion it is Wielowieś (after 1975 a part of Tarnobrzeg town). In Latin documents it has the name Magnavilla it means Wielka wieś (Eng. Large village). If Kuras spoke a dialect he could say "wielgo" instead "wielko".
http://pl.wikipedia.org/wiki/Wielowie%C5%9B_%28Tarnobrzeg%29

And here a Kuraś from Wielowieś, who maybe is related
http://pl.wikipedia.org/wiki/Ferdynand_Kura%C5%9B