Louis Victor Wijnhamer, better known as Pah Wongso, was an Indo social worker popular within the ethnic Chinese community of the Dutch East Indies, and subsequently Indonesia. Educated in Semarang and Surabaya, Pah Wongso began his social work in the early 1930s, using traditional arts such as wayang golek to promote such causes as monogamy and abstinence. By 1938, he had established a school for the poor, and was raising money for the Red Cross to send aid to China.

Star Film was a film production company in the Dutch East Indies. Established by Chinese-Indonesian businessman Jo Eng Sek and Chinese cameraman Cho' Chin Hsin in 1940, it produced five black-and-white films in 1940 and 1941; two of these were directed by Jo, and the remainder were directed by Wu Tsun. Another film was under production when the studio was closed following the Japanese occupation of the Dutch East Indies. Star helped establish the careers of actors such as S Waldy and Elly Joenara, and produced screenplays written by Rd Ariffien and Saeroen; its output, however, is probably lost.