Ma Doras
From Tardis Wiki, the free Doctor Who reference
Ma Doras was the mother of Celia Doras and Anne Doras. She ran a boarding house in Guernsey.
Ma Doras first met the Seventh Doctor on 31 October 1913, when he saved the islands from an unspecified threat, but wasn't able to save Celia.
In December 1940, as a favour to the Doctor, Ma Doras allowed Bernice Summerfield to stay in her boarding house and assume Celia's identity. Ma was nearly sixty years old at the time. (PROSE: Just War)