Antonia Kramer was born in Hörstgen, the western part of the city of Kamp Lintfort in Germany as a daughter of Alex Kramer and Sophia Aron. She was unmarried when she left Elberfeld in Germany for Leeuwarden, where she was registered 10 December 1937 at the address Leeuwerikplein 5 in the Municipal Peoples Registers. On 29 September 1939, Antonia moved to Steijnstraat 6 in Arnhem but one month later the moved in at the address Plantage Franschelaan 34 upperhouse in Amsterdam, to move in some weeks later in the family of Abraham de Metz, who lived at Kinderdijkstraat 76 3rd floor in Amsterdam. Antonia still was unmarried and worked as maid.
Abraham de Metz had become a widower in 1938; his wife Bertha van Leeuwen, whith whom he had three children, passed asway in Amsterdam and she was interred in the Jewish Cemetery in Diemen. Early 1942, Antonia Kramer and Abraham de Metz (a son of Eliazer de Metz and Marianna Cohen) decided to get married. Their marriage was concluded 4 February 1942 in Amsterdam.
However, under pressure of the circumstances, Antonia Kramer took her own life. Her husband Abraham de Metz, together with his daughters Henriette Elise and Marianne Clasina, were taken to concentration camp Vught in the night of 6/7 May 1943, after which Antonia lonely stayed behind. She was found dead 21 May 1943 by a police man who made the declaration of death at the Civil Registry of Amsterdam, of which on 22 May 1943 a certificate of death was drawn up under no. 155 (register 8). Antonia Kramer has been interred in the Jewish Cemetery in Diemen.
Sources: City Archive of Amsterdam, archive card of Antonia Kramer and Abraham de Metz; website zoekakten.nl, certificate of death 155 dated 22 May in register 8 for Antonia de Metz-Kramer; website hetstenenarchief.nl, grave Antonia Sara Kramer and NIOD, Records Joodse Raad, box 36d, letter d.d. 31 May 1943