Betje Polak was the third of the six children of Jacobus Polak and Vroukje de Jong. She was born on 14 September 1876 in Rotterdam and married there on 23 May 1918, aged 41, the 49-year old widower of Sara Davidson, Simon Hornman, a son of Joseph Hornman and Jetta van Zwanenberg and who was born in Rotterdam on 4 November 1868.
Simon Hornman married his first wife Sara Davidson on 8 June 1892 and …