De Locomotief, 29 Mar 1952: a Blue Band margarine advertisement listing prize-competition winners. It was retrieved only because of the name Sumijarsi/M. Caropeboka (Bogor) in the winners' list; no Gerwani-related content. False hit, much OCR unreadable.
Het Nieuwsblad voor Sumatra page-4 advertisement (1 Apr 1952): a long Blue Band/Unilever prize-draw winners list (cars, scooters, radios, etc.) with hundreds of names and towns. 'M. Caropeboka - Bogor' appears as a ballpoint winner. Nothing indicates any link to Sumiyarsi Siwirini Caropeboka; the name match is coincide
Java-Bode, 1 April 1957, p. 3: a page of classified advertisements (bookkeeper wanted, midwife wanted, tractor and car for sale, bank holiday notice, pharmacy opening). The 'Trimurti' in it is N.V. Trimurti, a firm seeking typists, not S.K. Trimurti. No relevance to Gerwani or Indonesian politics.