• Three Witches - Yeadon at 70. Introduction
• Three Witches - Communication
• Portrait of a Dead Witch
• It's Alive, Harwell/Dekatron WITCH. 2017
• Two WITCHES
• The National Museum of Computing
• The National Museum of Computing
• The National Museum of Computing
• The National Museum of Computing
• John Yeadon, Delwyn Holroyd, Kaldip Bhamber and Kevin Murrell
• John Yeadon, Delwyn Holroyd, Kaldip Bhamber and Kevin Murrell
• Delwyn Holroyd, Kaldip Bhamber, John Yeadon and Kevin Murrell
• Three Faces of the WITCH. Evening talk event
• Three Faces of the WITCH. Evening talk event
• John Yeadon and Kevin Murrell
• John Yeadon