Rosa de Haaff, born 7 June 1874 in Rotterdam, was a daughter of Salomon de Haaff and Catharina Schnitzler. On 8 January 1895 she married in Antwerp the diamond worker Barend Wessel, a son of Barend Wessel and Klaartje Gompers. The couple had four children, namely Samuel, Clara, Bernard and Herman. Only the latter has survived the Holocaust; his siblings and their families were murdered in the Shoa…