Jacobus de Leeuw, wholesaler in meat by profession, was the youngest son of Abraham de Leeuw and Betje Zeehandelaar. He married 15 December 1921 in Amsterdam Maria Wolff, a daughtrer of David Wolff, a commissioner from Nijmegen and Clara Jessurun Lobo from Amsterdam. Jacobus and Maria had two children, namely David in 1923 and Betty in 1930. The family lived at Rijnstraat 76 1st floor in Amsterdam…