Hi and welcome to Rootschat, just on the off chance, could she be the Lucy Hardick 44 occ School Mistress b Cranborne, Dorset who has a household of scholars and teacher's of Music & French and English, at Boreham Terrace, Warminster in 1851 Census HO107/1843143/4
In 1841 with even more pupils at what has been transcribed as Borcham Road, Warminster
Census Ref HO107/1187/ 10/58 / 7
In 1861 Lucy aged 54 pupils/teachers etc are at East End House, East Street, Warminster
Census Ref RG09/1304/18/30
Keyboard86