Sientje van Straten was a daughter of Hartog van Straten and Saartje Gompers. She came from a family of ten children. One of her brothers was among others Jacob van Straten.
Sientje's first marriage was with Samuel Snijtselaar who passed away in November 1908 in Anderlecht (B). They had two children together: Sara (who survived the Holocaust) and Henri. Later Sientje married again to Mozes van Praag, born in Amsterdam, who died in Den Haag on 22 July 1941.
Sientje lived as a widow together with her sister Betje in Den Haag with also her son Henri, and previously in Rotterdam and Anderlecht (B).
Municipal Archive of Rotterdam, family registration card of Sientje van Straten and Municipal Archive of Den Haag, certificate of death of Sientje van Straten and Mozes van Praag.
A Liro card exists for this person or family. The original cards are kept at the Nationaal Archief (National Archive) at The Hague.