Siemon Frank was married to Leentje Goslinski. The couple had a son Izak, who married Emma Roeper. Siemon Frank was a brother of Zadok Frank, with whom he ran a wholesale business for stoves, hardware and household supplies. The business was located at 72a Oosterstraat in Groningen.
N. Benninga, Oorlogsherinneringen. Met achtergrondinformatie van H. Hamburger en J.C. Regtien (Bedum 1997) 17
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