Ethel Tracy Richardson, RRC (8 August 1877 – 8 November 1942) was an Australian nursing sister, army matron-in-chief, and honorary major who served during the First World War.

[2] She was the eldest of five surviving children of Henry Francis Foster Richardson, an English account and civil servant, and her Tasmanian mother Louisa Brewen.

[1][2] In August 1915, Richardson was appointed as the matron-in-charge of Reinforcements to Army Sisters for England and served in Harefield Hospital, then known as the No.

[1][2] Richardson was recalled to Australia in 1916, where she was made matron-in-chief on the staff of the director general of medical services at Army Headquarters, Melbourne – the first person to hold this position.

[5] Richardson married Walter Edward Attiwill, a station manager from Hexham, Victoria, on 14 December 1921.