She educated at home by masters from Rugby School, as were her sisters. Henrietta Jex-Blake studied music at the Leipzig Conservatoire, Dresden, and in Vienna, and became an accomplished violinist.[4]
Career
Between 1899 and 1909 Jex-Blake was headmistress of St Margaret's School, Polmont, Scotland, originally which was founded by Maud Mary Daniel, her sister Katherine's friend from Girton College, Cambridge. Jex-Blake promoted girls' sports and encouraged her pupils to go to university, particularly to Girton.[4]
In 1909 Jex-Blake became the second principal of Lady Margaret Hall, Oxford, succeeding Elizabeth Wordsworth. Under Jex-Blake's tenure student numbers increased, a number of large building projects were completed, and the college became incorporated under the Companies Act.[4]
Jex-Blake campaigned for degrees to be opened up for women and when women became eligible for degrees at the University of Oxford in 1920, following the passing of the Sex Disqualification (Removal) Act 1919 she presented the first candidate for matriculation and was herself awarded an honorary MA.[8] She was also a supporter of women's suffrage.[4]
Later life
Jex-Blake retired in 1921, she and her sister Katherine travelled together, spending some winters in Italy and in the 1930s found themselves caught up in the Spanish Civil War whilst travelling in Europe. In later years, Henrietta and Katherine Jex-Blake shared a home in Tunbridge Wells.[4]