The name might be changed to Frazer (The Empty Planet), as written in the subs. Mrs FraZer isn't mentioned elsewhere.
Talk about it here.
Mrs Fraser lived on 30 Bannerman Road in Ealing. When the Automaton removed the whole population, Mrs Fraser was removed as well. The breakfast was still on the table and her door stood open. There were a lot of toys for young children in the house. Rani Chandra went inside the house to look for Mrs Fraser but couldn't find her. (TV: The Empty Planet)