Harriet Sides was the eldest daughter of Henry Sides. Born in 1834 she was married to William Cunningham in 1871 age 37. William Cunningham was born in 1826 in London to a William and Mary Cunningham and in 1861 is shown to be living at 20 Broad Street, Oxford.
In 1881, Harriet and William were living in Kidlington, Oxford with their two children, Clifford (6) and Walter (4). In 1891 they were living at 167 Walton Street, Oxford along with their two children and a servant, Clara Seppury.
William died on 1 July 1894 leaving £11,886 6s 8d in his will – almost £1.4 million in today’s money.