Ernst de Leeuw was a son of Salomon de Leeuw and Rosalie Bonn.
City Archive of Amsterdam, archive card of Ernst de Leeuw.
Ernst de Leeuw lived at 91 Jodenbreestraat in Amsterdam. Under pressure of the circumstances, he took his own life one day between 6 and 17 May 1943.
NIOD, Records Joodse Raad, box 36d, letter d.d. 17 May 1943.