SOMPOLSKI
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According to Michael Pizer: The Sompolski family owned the town Mikvah [religious bathhouse] . One son, Herschel, worked as a tailor for Sender Przedecki.
Discovery via Klodawa town hall records Sompolski sisters Estera and Frayda Laja married Burdowski brothers Mordka and Majer-Hercz. When speaking to the Burdowski descendants they did not know/or were not sure their grandparents had families prior to the war. See below birth records for Burdowski/Sompolski:

MORDKA BURDOWSKI AND ESTERA SOMPOLSKI BIRTH OF SON LAJB. KLODAWA [exact date unknown].

MAJER-HERCZ BURDOWSKI AND FRAYDA LAJA SOMPOLSKI MARRIAGE RECORD. KLODAWA. [exact date unknown]

Book of Residence, Klodawa [exact date unknown]. Sompolski family: Rywka, Estera-Bajla, Frajda-Laja, Szeja-Fajga. [crossed out indicates moved from residence]