Hilda Johnstone FRHS (1882–1961) was a British historian, and one of the first female professors in the London university system.
[1] Hilda Johnstone, born in 1882 to Herbert and Sarah Anne Johnstone, was educated at Manchester High School for Girls from 1894 to 1899 and read History at Manchester University, graduating M.A.
She had two sisters, Edith and Mary (who became the wife of Thomas Tout); both attended Manchester High School for Girls.
In 1922 she was appointed Professor of History, Royal Holloway College, University of London.
[3] In retirement Johnstone became Honorary Archivist to the Bishop of Chichester, and Honorary Consultant on Ecclesiastical Archives to the Records Committee, West Sussex County Council.