[1] Stonham attended William Morris Senior High School in Walthamstow, East London, leaving in 1974.
Stonham has a master's degree in Screenwriting for Film and Television from Royal Holloway, University of London.
She was also a contributor to other Radio 4 comedy shows including The Sunday Format, Dead Ringers and Week Ending.
[2] In 1995 she shared a Writers' Guild of Great Britain award with her co-writers for the television comedy series Harry Enfield & Chums.
and Dani's House for CBBC, Girls in Love for Granada Kids, Grange Hill for Mersey Television and Shaun the Sheep for Aardman Animations.