Hi again,
The nearest I've been able to find for an unmarried Caroline Holt in 1841, along with a James Holt, is the following:-
1841 Census
Square Brook, Chadderton, Lancashire
James Holt - 83 - Schoolmaster - y. (born in county)
Caroline Holt - 25 - Power Cotton Weaver - y.
Ref: HO107 / 545 / 2 / ED3 / f.44 / p.15
Unlikely, I realise, but I thought that I ought to mention it.
Regards,
Richard