Wolf David was a son of Hartog David and Hendrika van der Sluijs. He was born in Rotterdam on 6 August 1868 and earned his living as a dealer in bicycles and parts. He married in Rotterdam on 7 December 1887 Antonetta Andriessen, born on 5 March 1870 in Den Bosch as daughter of Emanuel Andriessen and Mietje Wallig. The couple had five daughters, namely Hendrika in 1888, Roosje in 1889, Mietje in 1…