Among those who laid the foundation for Swedish Ethnology and Folklore in the 19th century was the author and the folklore researcher Eva Wigström. This article presents some of her previously unpublished letters between 1881 and 1883. The letters were sent to the Professor of Meteorology at Uppsala University, Hugo Hildebrand Hildebrandsson. They both represented different fields, natural sciences, and humanities, but popular culture was their common interest. Eva Wigström has been accused of many things, such as a lack or order in her handling of the recorded material. In a tightly structured environment, socially and culturally, like the late nineteenth century, there were limits to what was possible to depict. It was not possible to write about everything, and one had to make sure that some informants could not be recognized.