Mary Miller
From Tardis Wiki, the free Doctor Who reference
Mary Miller (née Ryder) was the mother of Lucie Miller and sister of Patricia Ryder. (AUDIO: Horror of Glam Rock)
She played roller derby competitively. Mary was once named "Queen" of the Golden Wheels Roller Disco at the Palitime Blackpool. She got Lucie a pair of rollerblades for her thirteenth birthday. (AUDIO: The Revolution Game)