Looking for Robak

My great grandfather, Wladyslaw Robak, came from Poland in 1912. I am trying to trace my roots but do not have much family to ask...his World War I draft registration says he came from Ploezcky, Poland, Russia. I am unable to find Ploezcky anywhere...does anyone have any input on this place or Robaks in or around that area?

I am new to tracing family, so thanks for any help you have to offer!

Ploezcky could be Plock (Pl/ock). Was this a town or a village? Plock is a moderately large town

Thanks for your reply! I'm not sure if it was a town or village. I do know his family owned a horse farm, so perhaps a village? If it was a village, would it not be listed on any maps? I think I'll research Plock, that seems to be the closest to what's written.

Again, thank you for your help.