Olivia Viļumson was a Baltic German and an Adventist. She lived with her parents on a farm in Katlakalns south of Riga. In the winter of 1942, she met the Jewish woman Frīda Frīd while visiting Riga. Frīd was hiding from the German occupiers and looking for a new place to shelter. When she offered to sew Olivia Viļumson a winter coat, Viļumson took her to her home. The Viļumsons hid Frīda Frīd in the house at first, where she looked after the household and sewed. From the spring of 1942, Frīd joined in the work on the Viļumsons’ fields. She slept in a haystack or the forest so as not to endanger the family.
In the winter of 1942/43, Olivia Viļumson found hiding places for Frīda Frīd with other Adventist families in and around Riga. The two women remained in contact, however. When Frīd had to hide in a forest again in 1944, Olivia Viļumson provided her with food.
After liberation, Olivia’s father Ferdinand Viļumson was suspected of having collaborated with the National Socialists. Frīda Frīd testified that the Viļumsons had supported her, protecting him from punishment. Olivia Viļumson died of tuberculosis in 1945.