The marriage on the 9 Mar 1825, Crich, Derbyshire, one record states Thomas Crossey to Harriot Cruthers. Now this may be a bad transcription for Thomas but Harriot’s surname is not even close. However another record transcription gives the names you state.
I did find Esther Caithness age 50 on the 1841 census in Stafford, no family, not born Staffs.
She died there in 1844. The name is strong in Scotland of course but also in other parts of England by this time.
I did come across this on FS, which might be worth following up:
Henriette Caicithness baptism Apr 1799, mother Ann Caicithness
ACTON TRUSSELL AND BEDNALL, STAFFORDSHIRE. (Right next to Brocton)
Colin