Mary Jones, his sister.
Peter Jones was a male Gryffindor. He posted a poster in the Gryffindor common room asking if anyone knew were his cauldron was. He described his cauldron as sort of dented on the top and burned at the bottom. When he was in Dumbledore’s army he learned the spell expelliarmus. He learned it very quick. He is related to Megan and Mary Jones. He survived the battle of Hogwarts
unlike her sister Megan. He shared a room with Geoffrey Hooper, Cormac Mclaggin, Carl Hopkins and Jake Flinton
His other sister Megan Jones