I received a letter from the parish priest Ks.Jacek Zatorski who writes that they do have "acts" from the year of my Grandfather's birth. Written in Russian. They have no one there to translate it and he suggested engaging a local lawyer in Suwalki and/or writing directly to National Archive in Suwalki.
I will attempt to do both. I have no one in Poland and found no records from his birth year in LDS.