Henrietta Horatia Maria Gaisford, née Feilding (1810-1851), was Talbot's half-sister. She married Thomas Gaisford (1816-1898) in 1850.
Amélina Petit de Billier (1798-1876), otherwise known as 'Mamie', was governess to Talbot's children and grew to become a close friend of the Talbot family. She was very musical, by all accounts.