Evie Hubbard
From Tardis Wiki, the free Doctor Who reference
Evie Hubbard was a student at Coal Hill School.
Biography
The Twelfth Doctor took her back in time to help her with an interview with Winston Churchill. Her teacher, Clara Oswald, later took a selfie with her. When Clara showed the selfie to the Doctor on her iPhone, the Doctor glimpsed Ashildr in the background. (TV: The Woman Who Lived)