The voice of Miriam de la Croix’s letter covers the life of a botanist and her three children. The letter contains Miriam de la Croix’s compassion for the plight of the Dutch East Indies under European colonial rule, especially the Netherlands. The content of the letter became the background sound in the activities of a botanist in doing modern work and science with her three children that day, where modernity and science in the Indies actually came together with European colonialism.