Jonas Dingsdag was the youngest of the twelve children of Levie Dingsdag and Mietje Theeboom. He was born on 14 August 1916 in Amsterdam and he became a goldsmith by profession. Untill May 1939 he lived at Blasiusstraat 120 1st stock with his parents. His sibs Joseph and Mozes and their families lived there too on the 2nd floor. At the end of May 1939 Jonas stayed shortly in Enschede, at Noorderhagen 9 and at 58 Ledeboerstraat; there lived the mother of his sister-in-law Henriette Suiskind, wife of his brother Jacob, Rosa Helena Suiskind-Goedhart.
Jonas returned to Amsterdam on 29 August 1939, lived at Waterlooplein 91 2nd floor but moved on 27 December 1939 to Lepelstraat 12 2nd floor, to his brother Joseph Dingsdag, who lived there with his wife Sientje van West and little son Levie since 30 October 1939. On 9 June 1941 he moved to Blasiusstraat 130 groundfloor in Amsterdam-East, where he moved in with his future in-laws, the family of Mozes Gobes and Clara Kapper; he married their daughter Judith on 22 July 1942.
At Blasiusstraat 130, the barbershop of Judith’s father Mozes Gobes was located. As a result of the introduction of the anti-Jewish measures, whereby Jews were increasingly excluded from society, Moses Gobes and his family received the special exemption from deportation, “Joodsch Lokaal” (Jewish Business). For their shopping, Jews were obliged to use the still present Jewish middle class and tradespeople. Also daughter Judith was provisionally exempted from deportation, just as Jonas Dingsdag too, after his marriage to Judith.
On 20 June 1943, Jonas Dingsdag, his wife Judith and his in-laws Gobes were arrested during the large-scale raid, secretly prepared by the Germans, and taken by train to Westerbork. For reasons unknown, Jonas ended up there in the penal barrack 67; of his wife it is not known where she was accomodated. His father-in-law ended up in barrack 93 and his mother-in-law in barrack 58.
His sister-in-law Jeannette Gobes, the twinsister of his wife Judith, had been arrested already in the raid of 20 May 1943 and deported to Sobibor, where she was murdered on 28 May 1943. Jonas Dingsdag, his wife Judith Dingsdag-Gobes and the other in-laws, were put on transport to Sobibor on 29 June, and upon arrival there on 2 July 1943 immediately murdered in the gas chambers.
Sources include the City Archive of Amsterdam, family registration cards of Jonas Dingsdag and Mozes Gobes, archive cards of Joseph Dingsdag, Judith Gobes and Mozes Gobes; the file cabinet of the Jewish Council, registration cards of Jonas Dingsdag, Judith Dingsdag-Gobes, Mozes Gobes, Clara Gobes-Kapper and Jeannette Gobes; the Wikipedia website Razzia 20 June 1943 and the Wikipedia website jodentransporten vanuit Nederland.nl.