De Nieuwsgier, 6 Dec 1952: representatives of 18 parties and organisations in Surabaya, under the PNI, urge the government to clarify whether the 17 October 1952 affair was a coup, to act against all involved and to implement the Sophiaan motion. Gerwis is among the listed attendees (with PKI, PNI, SOBSI, Murba, Wanita
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.