Miss Ricardo was probably Albert Ricardo’s sister, Emily Ricardo, who did not marry. The Ricardos were a very large family – Albert’s grandfather, Abraham Ricardo, had at least 15 children, most of whom married and had families, so Albert had a great many cousins and, among them, a number of other “Miss Ricardos”.
Lady Cosmo Russell, née Annie Norbury, was the daughter of John George Norbury, of Mammeter Hall, Leicestershire. Her husband, Lord Cosmo Russell, was a younger son of the 6th Duke of Bedford. He is known to have been a steeplechase rider and taken part in amateur theatricals, like Albert Ricardo.
Mrs. Percy Ricardo née Matilda Mawdesley Hensley, was the wife of Albert Ricardo’s first cousin, Percy Ricardo, J.P., D.L.
Margaret (Madge) Elizabeth Williams was the eldest daughter of Lt. Col. Thomas Peers Williams, M.P. for Great Marlow, who lived at Temple House, near Bisham, Berkshire, not far from where the Ricardos lived in Maidenhead. She married Captain Richard Mostyn Lewis Williams Bulkeley, 11th Bt. of Baron Hill, Beaumaris, in 1866, as his second wife.