Jacob Beek was a son of Philip Leon Beek and Rebecca Koren, who lived with their family at Eerste van Swindenstraat 76 1st floor in Amsterdam since 1912. Jacob was born 10 February 1885 in Amsterdam, unmarried and tailor by profession. After the passing of Jacob’s father on 3 July 1916, who had become already a widower in 1901, Jacob Beek became main tenant of the house, where also his unmarried s…