Izak Frank, a son of Heineman Frank and Leentje Groen, married widowed from Geertje Frenkel on 24 January 1931 a daughter of Joseph van Gelder and Marianna Izak (Jetta) Park, Mina van Gelder. Izak's first wife Geertje Frenkel died on 2 April 1930 in Winschoten. The marriage of 67-year-old Izak Frank and 62-year-old Mina van Gelder took place in Den Haag.
Izak Frank had seven children from his marriage to Geertje Frenkel. Two of his sons were killed during the Shoah, viz. his eldest, Heiman Jacob, and his youngest, Jacob. His daughter Leentje died just 3 months old in 1901 and his son Benjamin died at the age of 18 in 1915. Three of his children, viz. Fannij, David and Eli survived the Holocaust.
Mina van Gelder came from a large family too; her parents Joseph van Gelder and Jetta Park had 12 children, of which only Jacob and Mina van Gelder were murdered during the Holocaust. All other children in the family died before the war, including four in childhood, five between 1920 and 1940 and one in 1942 in London.
Before Mina van Gelder got married to Izak Frank, she and her unmarried sister Sara lived with her brother Jacob van Gelder in Rotterdam, who was married to Mietje van Geldere. As a housekeeper, maid and servant, the unmarried Mina van Gelder also stayed elsewhere in the Netherlands for shorter or longer periods, i.e. in Amsterdam, Den Haag, Den Bosch, Strijp, Amersfoort, Deventer, or Utrecht. From the beginning of January 1918 she worked as a housekeeper in Rotterdam with the widow of Leon Levie Pienas, Naatje van Gelder, who lived at Van der Werffstraat 36 and who passed away there on 17 November 1920 at the age of 99 years.
Izak Frank was a stationery dealer and had his business in Winschoten, where he lived. After his marriage to Mina van Gelder, she moved in with her husband at Olieslagerstraat 46 in Winschoten. There Izak Frank passed away on 12 December 1940 at the age of almost 77 years.
On 18 November 1942 Mina Frank van Gelder was fetched from her residence in Winschoten and carried off to Westerbork. After a short while in Westerbork, she was deported to Auschwitz on 8 December 1942. Arriving there on 11 December 1942, she was immediately murdered in the gas chambers of Auschwitz-Birkenau.
Sources include the City Archive of Rotterdam, family registration cards of Mina van Gelder and Jacob van Gelder; the Municipal Archive of Den Haag, family registration card of Mina van Gelder; City Archive of Amsterdam/finished and closed family registrations/Mina van Gelder; certificate of marriage nr. 53 for Izak Frank x Mina van Gelder from Den Haag; certificate of death nr. 230 for Izak Frank from Winschoten; website joodserfgoed Rotterdam.nl/Van der Werffstraat 36 and the file cabinet of the Jewish Council, registration card of Mina Frank-van Gelder.