Hi all. My ancestor Dacha Leah LABRYS immigrated to Israel in the 1920's >from Brest-Litovsk. Until not to long ago there was a very helpful lady called Batya Untershatz, working at the missing people department of the Hebrew Agency. She had access to early Palestinian-Israeli records and was able to find a great-grandfather of mine. She has since retired. Does anyone know what records could be helpful in tracing early immigrants to Israel? Where can I access these records? Any info would be very helpful.