Niedecker died in 1970 from a cerebral hemorrhage, leaving behind several unpublished typescripts. Many other Niedecker papers were burned by Millen, who said he did so at Niedecker's request. Her name was added to her parents' headstone which uses the original spelling of the family name, Neidecker. Lorine had her name changed to the Niedecker spelling when she was in her twenties. The primary Niedecker archives are in the Dwight Foster Public Library (which inherited Niedecker's personal library) and the Hoard Museum in Fort Atkinson, Wisconsin (which holds a collection of Niedecker's papers, as preserved and donated by her neighbor and close friend, Gail Roub).