so, do you have any good source on description of life/culture in poland around that time?
Yes, books from that period. Try The Labors of Sisyphus
by Stefan Żeromski. You can also read The Peasants
or The Promised Land
by Władysław Reymont or Nad Niemnem
by Eliza Orzeszkowa. You're lucky. The end of XIX cent. is a period of realism in literature so there are many novels from that period which describes the life and social problems of that time in very detailed way.
If you are intrested in the earlier period (1811-1812) you can read "Pan Tadeusz" by Adam Mickiewicz.
You need also study history a lot as well...