The Dictionary of National Biography confines her to the entry under her husbands name: As a widow, she gave an impression of pious seclusion, declining the mistress-ship of Girton College, Cambridge, in 1884. And for a long time I simply called her by the shorthand form of Lady Fred in my research notes
Light dawned one day however & I realised that the Cambridge college must be named after her.
A talk she gave about education is also available
Lord Lytteltons Daughters by Sheila Fletcher, published in 1997, tells the story of Lucy & her sisters, making use of all their diaries