[1][2][3] Sheila Geraldine Mary Murphy was born at 18 Harcourt Street, Dublin on 28 December 1898.
In her positions in the Department of External Affairs, she handed many highly confidential correspondence and documents, while working closely with Joseph Walshe.
Her involvement in such documents can be seen by her initials "SGM" on much of the sensitive Department of External Affairs material which is now held in the National Archives in Dublin.
Conor Cruise O'Brien confirmed that Murphy was part of "a very small, tightly knit, confidential group of officials" who advised Éamon de Valera.
[4] Murphy died at Oak House nursing home, Orwell Road, Rathgar, Dublin on 15 January 1983.