Anna Ecklund

Anna Ecklund was a pseudonym for Emma Schmidt, an American woman whose demonic possession and exorcism occurred over several decades, culminating in an extensive exorcism that lasted from August 18 to December 23, 1928, in Earling, Iowa. Ecklund was said to have exhibited symptoms akin to possession beginning at age fourteen, and was forty-six years old during her final exorcism by Father Theophilus Riesinger, a Roman Catholic priest.

Ecklund's case is considered by theologians and scholars of the paranormal to be one of the most abundantly documented cases of possession in the 20th century, including a profile in a 1936 issue of Time magazine.