Henrietta Jane Jackson was born in Alveston, Warwickshire, she was baptised at Billesley, where her father, Francis George Jackson, was Rector, on 20th March 1849. Her mother was Maria Margaretta nee Fortescue, 38yrs. Henrietta had 3 sisters, Mary Cordelia b.1845, Georgiana Frances b. 1846, and Katherine Maria b. 1850. Henrietta and her sisters spent much of their childhood at the Manor House, Alveston, home of their grandparents, Rev. Francis Fortescue Knottisford and his wife, Maria. They were a family of great wealth and the Manor House employed 10 house servants, including a butler, footman, and 4 nursemaids. In 1861 Henrietta's father was Curate at Eardington, Shropshire, and the family lived there, the girls being taught by a governess. The family moved again when Henrietta was in her twenties, living at North Lodge, Winkfield, Berkshire, a substantial house in Windsor Forest, where they remained for over 20 years, the sisters never married. Their father died in 1886 and Henrietta, her sisters, and widowed mother, continued to live at North Lodge until 1906 when their mother died, aged 96yrs. The girls lived the rest of their lives on private means as they had inherited over two million pounds, (2019 value) from their parents.
Henrietta, Georgiana and Katherine, then moved to Manor Road, Worthing, where they named their house, Alveston, after their birthplace. Henrietta died there, on 18th August 1915, aged 66yrs, probate was granted to Rev. Percival Hawksley, effects £6569 11s 4d. Value 2019 - £607K.