Agnes Cecil Cowper was born in 1864 in Twickenham to Edward Alfred Cowper, Civil Engineer, 44yrs, and Juliana, 35yrs, nee Hanson. Agnes was the youngest of 9 children, Charles 15, Julia Edith 12, Grace Evelyn 10, Mary Emily 9, Percy 5, Ann Florence 4, Helen Nina 2, and Alice Maud 1. Her brother, Vernon, was born in 1872. In 1871 Agnes 7yrs, lived with her family at Leigham Avenue, Streatham, they employed a Cook, Housemaid and Nurse. When Agnes was 17yrs in 1871, the family lived at Hill Hurst, Amberley Road, Lewisham, her brother, Charles, 32yrs, was a Civil Engineer, her sisters, Annie, 21yrs, and Alice, 18yrs, were both Artists, Vernon was 9yrs. In 1891 Agnes, 27yrs, and Helen, 29yrs, both lived at the home of their wealthy parents, Rastricke, Pine Grove, Weybridge, Surrey, on private incomes, their brother, Vernon, 19yrs, was an Actor. They employed a Cook and Housemaid. In 1893, Agnes's father, Edward Alfred, died aged 73yrs, his estate of £24329 15s 11d in 2020 would be worth £3.1m. Agnes and her mother moved to Worthing where they lived in Heene Road, naming their house, Rastricke, but in 1897, on 1st July, Agnes died aged 33yrs.