Hélène Smith (real name Catherine-Elise Müller, December 9, 1861, Martigny – June 10, 1929, Geneva) was a famous late-19th century French medium.
In 1900, a certain Mrs. Jackson, a rich American spiritualist who was impressed by Müller, offered her a salary which would permit her to quit her job and dedicate herself to pursuing and documenting her experiences.
[4][5][6] Psychologists Leonard Zusne, Warren H. Jones have written: Flournoy was able to show her Martian language was an artful fabrication.
Although it sounded decidedly foreign, frequency analysis of words and letters and an examination of the syntax convinced Flournoy that the language had all the basic structural characteristics of French, Hélène Smith's native tongue.
[7]The case was examined in depth by psychologist Donovan Rawcliffe in 1952 who noted that Smith had suffered from a fantasy prone personality and hysterical hallucinations.