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 saw Leland Evans walking with his cauldron and denting it as well as burning the bottom, he, Megan, and Mary chased Leland around the Hogwarts grounds but then Leland fell on the ground and then Peter and his sisters held him to the ground (Megan was holding Leland’s legs and Mary was kneeling onto him and holding down his arms while Peter began hitting Leland and slamming him when Leland tried to get up) and the outcome was unknown but Leland came into the Slytherin common room with bruises and cuts. 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