Maurits Poons was a son of 546910 and Aaltje Hartog. He married in Den Haag on 27 August 1913 to Rebecca Sarluis, daugther of Joseph Sarluis and Naatje Ut. The couple had three children, Siegfried, Anna (who has survive the Holocaust) and Joseph Maurits.
Municipal Archive of Den Haag, index marriages and an addition of a visitor of the website.