Sidney H. Radner was born on December 8, 1919 in Holyoke, Massachusetts, USA as Sidney Hardeen Radner. He is known for his work on Houdini: Unlocking the Mystery (2005) and They Are Here: The Real World of the Poltergeists (2007). He was married to Helen Cohen. He died on June 26, 2011 in Holyoke.