De Nieuwsgier front-page report (6 Dec 1954) on a mass demonstration at Medan Merdeka, Jakarta, organised by the West Irian liberation committee with women's organisations, demanding incorporation of Irian and rupture with the Netherlands. Speakers included Mrs. Sudarman Hadikusumo, Mrs. Kartowijono (Perwari) and Mrs.
De Nieuwsgier report (31 May 1955, p. 2) on a PKI anniversary/election rally in Jakarta where Aidit spoke. Mrs. Oemi Sartono (Umi Sardjono), described as a non-party Gerwani member, said she chose the PKI because it is a choice of being for or against the people; non-party candidate Astrawinata also spoke.
De Nieuwsgier item (7 Mar 1956): after Dutch parliamentary reports on making West Irian a Dutch territory, the West Irian Liberation Action Committee, in a letter signed by Mrs. Sudarman, Umi Sardjono and Mrs. Sutedjo, urged the Volkskongres to press for a provincial administration for West Irian and handed over Rp 1,3
De Nieuwsgier parliamentary report (16 Nov 1956) on the debate over resolutions on Soviet "interference" in Hungary (Anwar Harjono) and an appeal to the UN (Adam Malik). Umi Sardjono (listed Pembangunan faction) spoke against the Anwar resolution; it passed 102 to 29, the Malik motion 71 to 0.
De Nieuwsgier report (16 Nov 1956) on parliament adopting the Anwar Harjono resolution regretting Soviet interference in Hungary (102 for, 29 against, PKI etc.) and an amended Adam Malik motion (71 for) on UN troop withdrawals. Umi Sardjono is listed among the Malik motion's co-submitters (Pembangunan).