Earlier in her career , Miss Hamblin had undertaken the destruction of the portrait of Churchill painted by Graham Sutherland .
Lady Churchill 's long - time secretary , Grace Hamblin , was appointed the first administrator of the house .
Earlier in secretary 's career Grace Hamblin Grace Hamblin secretary had undertaken the destruction of the portrait of Churchill painted by Graham Sutherland .
Lady Churchill 's long - time secretary , Grace Hamblin , was appointed the first administrator of the house .