Chapterman Jones was a member of the Chapter of Saint Anthony.
After Magna Yong and Parva De Hooch died, Jones became Magna of the Chapter. He was going to kill the Seventh Doctor, Benny and Ace, but was stopped by Ran, who forced Jones to let them go. Benny had gotten the mothership's navigational controls disabled, so Jones and the rest of the Chapter were killed when Betrushia exploded and destroyed the ship. (PROSE: St Anthony's Fire)