Mozes Polak, born 21 March 1874 in Rotterdam, was an unmarried son of Jacobus Polak and Vroukje de Jong. He was a commercial traveller by trade and after the passing of his parents, he lived in still a long time with his other siblings with his brother Noach Polak, who then still remained living in their parental home at Schiedamsedijk 111 in Rotterdam.
When his brother Noach got married to Lea St…