I'm looking for An Old Dutch Relative, who probably came from Amsterdam and arrived in Java in the late or early 20th century and probably survived during the Japanesse Occupation. His occupation was Modiste (dressmaker) and Unofficially Painter (his works are mostly about Mooi Indie). He Lived in Bandung and shoped his own dress creation in a shop near Braga Street, Bandung.
His wife was presumably a Njai or a native Indonesian woman and had got (some?) a son whose occupation was clerk in Gemeente Bandung. His descendants survived the war and changed their names into the Indonesian ones.