De Nieuwsgier, 7 Apr 1953: the conference of women's organisations held on Gerwis's initiative on 2-3 April in Jakarta decides, among other things, to send an Indonesian delegation to the WIDF-organised world women's congress in Denmark on 6 June (the Copenhagen congress).
De Nieuwsgier, 5 May 1953: Jakarta's Children's Week opens with events and free cinema shows. The relevant paragraph says the first group of the Indonesian delegation to the 5-12 June Copenhagen world women's congress left on the Surriento: Setiati Surasto (Sarbupri) and Maasje Siwi and Kartinah, both of Gerwis, travel
Full scrambled page of De Nieuwsgier, 5 May 1953 (duplicate of GA-00684 context): children's week in Jakarta and, in one paragraph, the departure of the first Indonesian delegates (Setiati Surasto, Maasje Siwi, Kartinah of Gerwis) to the WIDF Copenhagen women's congress on the Surriento with the Australian delegation.