Seeking death records for my paternal grandparents. My grandfather, Fajwel Konigsberg was born in 1873 in Kresge, Poland. He died very young in Tarnogrod, Poland. My grandmother, Majta Konigsberg (nee Bergerman was born in 1870, probably Bilgoraj, Poland. She, too, died very young. They probably died between 1904 and 1918 and I'm guessing closer to 1910.
Also seeking my mother's birth record. Her name was Feige Malke Konigsberg Glicklich. She was born in Tarnogrod between 1899 and 1903 and emigrated to New York in 1920.
I've found records for some of my mother's siblings on JRI-Poland but haven't found her birth record.
What office in Poland would I contact via email that might have the above records?
Also, which Jewish Gen group do the towns Tarnogrod and Bilgoraj belong to? Thanks so much.