Dorothy was born in Wolverhampton on 26 November 1893, the daughter of Francis Robert and Emily Blizzard. In 1911, they were living at 48 Compton Road, Wolverhampton, along with Dorothy’s sister, Beatrice Emily, and a servant, Lavinia Page.
Dorothy served as a nurse with the British Red Cross during the war, from 1 March 1918 until 15 March 1919, at the 1st Western General Hospital in Liverpool. Her address by this date was 52 Compton Road, Wolverhampton.
Dorothy does not appear to have ever married, and she died in 1978 in Malvern, Worcestershire, at the age of 85.