The campaign group called for a public inquiry into the disasters within Mid Staffs Foundation Trust Hospital, the results of which, will be released today.
Deb Hazeldine lost her mother, Ellen Linstead, in December 2006 after she caught a superbug at Stafford Hospital.
She told ITV News' correspondent Rupert Evelyn that her memories of her mother are still coloured by the abuse she witnessed on the ward:
Families affected by the appalling standards of care at Stafford hospital have now arrived at Downing Street for a one-to-on meeting with David Cameron.
The families will be able to air their views on the failings at the hospital ahead of the public inquiry report due on Wednesday.