Margaretha Stouwer was the daughter of Joseph Stouwer and Sara Zodij. She married Benedictus Hamburger in 1894. The couple had two children: Sara and Alida, who died at a young age. Benedictus Hamburger died in 1935.
Stadsarchief Amsterdam, archiefkaart Margaretha Stouwer
Margaretha Hamburger-Stouwer died on 15 March 1943 in Westerbork transit camp and she was cremated there on 17 March 1943. The urn with her ashes was placed on the Jewish cemetry in Diemen on field U, row 2, grave number 1.
Register van joden die in het kamp Westerbork zijn gecremeerd, 1943-1944; archief van de gemeente Westerbork, opgenomen in het archief van de gemeente Midden-Drenthe te Beilen, inv. n 3789
Lijst van in de concentratiekampen Westerbork en Buchenwald overleden Joodsche Personen die op Nederlandsche begraafplaatsen ter aarde werden besteld; NIOD, archief Westerbork, port. 1, map 1