Abraham Wagenaar was the youngest son of Alexander Wagenaar and Ella Helena Dzialoszynski. He was born in Frankfurt am Main on 3 November 1924, just like his brother Lion Mordechai and sister Berta Helena. Two years later, in August 1926, the Alexander Wagenaar family returned to Amsterdam, where in the first years they found living space at Blasiusstraat 32 1st floor in the East of Amsterdam.
His…