You are welcome. Last night I found twelve birth records for Gwiazdowski, but I was too tired and saved only nine. I will send the images to your email addres. There is another Gwiazdowski (Dominik) married to a Tylenda (Wiktorya), though they didn't live in Krzywolka.
Wojciech and Anna had at least one more son, Wladyslaw, born in 1887. I did not check the death indexes in order to see if he survived or not.
In Krywolka also lived Jan and Antonina Cupzynski, Adam and Jozefa Andruszewicz. Other families lived in Sobolewo and in a third place I could not identifiy (I am not a russian reader, but I decipher some names). That makes 'your' Krzywolka the one closest to Suwalki, in gmina suwalki (mapa.szukacz.pl)