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Son of Lipot Aron Koch and Regina Koch Husband of Emanuella Koch and Emanuela Weingartner Brother of Etelka Koch; Aladár Koch; Oszkár Koch; Leo Koch; Lajos Itzik Koch and 5 others; Roza Koch; Jenő Koch; lili koch; Noname Koch and Rozsika Koch « less
marriage: https://www.familysearch.org/ark:/61903/1:1:68WK-WD66