The Ian Graham Athletic Center at the Peddie School holds a replica of the Heisman Trophy donated to the school by Kelley. To benefit his nieces and nephews, Kelley sold his Heisman Trophy at an auction in December 1999 for $328,110 to the owner of The Stadium Museum, Restaurant & Bar in Garrison, New York, where it now resides. His health was visibly failing by then after having suffered a minor stroke and having open-heart surgery, and on June 27, 2000, Kelley died of a self-inflicted gunshot wound at his home in Hightstown, ruled a suicide by the police. He was 85 when he died. He was survived by his fourth wife and 18 nieces and nephews.