Algemeen Indisch Dagblad (1951-08-20, p. 2, beginning missing) lists those arrested in the Surabaya raids: Chinese-Indonesian editors, SOBSI and SBKA chairman Surono, PKI chairman Hutapa and board members, kampung officials, and Gerwis chairwoman Mrs. Parjani Ilham, plus a Chinese school pupil. Police seized portraits
Algemeen Indisch Dagblad (1952-01-18, p. 3): in Surabaya a Panitya Pembebasan Irian Barat is formed at the initiative of the Badan Perdjoangan Irian Timur Jawa with SOBSI, PKI, PNI, Murba and others; Gerwis sits in the organisation section with youth fronts. It seeks to end the RTC agreement and abolish the Union.
Algemeen Indisch Dagblad (1953-08-25, p. 2): in Surabaya the trial of 42 students for wrecking the Vrije Pers offices opened; thousands of students and pupils demonstrated against the prosecution, joined, per Harian Umum, by Gerwis, Pemuda Rakjat and SOBSI. Banners demanded a press law, abolition of Dutch-language use