Mietje van Goch was a daughter of Isaak van Goch and Julie Berkleij. She was born in Schoonhoven on 1 Mey 1864 and married on 27 May 1885 in Rotterdam to Abraham Mug, a son of Jacob Levie Mug and Mietje Swaab. Betewen 1885 and 1898 the couple had six children, viz. Mietje in 1885, Isaac in 1888, Philip in 1890, Julie in 1893, Levie in 1896 and Philip in 1898.
The family of Abraham Mug lived at various addresses in Rotterdam, where Abraham, fishmonger by trade, passed away on 21 January 1922 and he was interred in the Jewish Cemetery Toepad in Rotterdam. Also after the passing of her husband, Mietje Mug-van Goch has resided at various addresses in Rotterdam. Her last address, before she was admitted in the Israëlitic Old Peoples Home in the Claes de Vrieselaan 70, was per 10 May 1930 the Nieuwekerkstraat 79/4 in Rotterdam.
Even before the Israelitic Old Peoples Home was evacuated on orders of the Germans in February 1943, the 78-year-old Mietje Mug-van Goch had already been deported from Westerbork to Auschwitz on 23 October 1942. Upon arrival there on 26 October 1942 she was immediately murdered in the gas chambers of Auschwitz-Birkenau.
Sources include the City Archive of Rotterdam, family registration cards of Abraham van Mug, the wedding certificate no.1885.461-Folio c040v-Abraham Mug x Mietje van Goch; website Joodserfgoed Rotterdam/gebouwen/Oudeliedengesticht (Dutch language only) and the file cabinet of the Jewish Council, registration card of Mietje van Goch-Mug.