Could she be related to Vice Admiral Alexander Thomas Emeric Vidal,he is buried not far from Arlington Villas and died at 13 Sion Hill Clifton,also only a short walk from Arlington Villas in 1863.
Is this the census you refer to??18614 & 5 Arlington VillasEllen G Brown Pupil 16 scholar b JamaicaRG9 1728 27 4Suz
Theres an Owen Alexander Vidal 20 undergraduate of Oxford visiting in Clifton 1861 census he was born Worthing .Edward ans Anna Strickland are his hosts hes a proprietor of houses