|Born||Carl M. Langdon|
October 30, 1917
Sullivan County, Indiana
|Died||March 1, 1995 (age 77) |
|Resting place||Resthaven Park Cemetary in Phoenix, Arizona|
Carl Langdon (1917-1995) was a semi-professional magician performing under the name of "The Mysterious Mr. E."
Langdon was a columnist for Genii, writing the column "From the Mysteries of Mr. E." in the late 1950s.
Langdon had served as President of the Pacific Coast Association of Magicians in 1961, was a past president of Ring 55 of the International Brotherhood of Magicians in Phoenix, edited the Ring 55 newsletter for ten years, and was a charger member of S.A.M. Assembly 248 in Scottsdale, Arizona. 
The following effects were published in Genii magazine:
- "The Cerebral Undulation With A Bent-Over Mexican From the Mysteries of Mister E" in Genii 1958 November (A Brainwave effect where the odd-backed card is produced, then a card is named.)
- Cerebral Undulation in Genii 1958 November