Charlotte Harley married Thomas Honor in Bletchley, Buckinghamshire in 1827, but census returns all have her place of birth as Northampton. I have searched online records for Northamptonshire and Buckinghamshire and not found a record I could confidently say is hers.My only thought is that she was previously married and her husband died soon after the wedding so her marriage to Thomas Honor was her second, but I can find no evidence of that either.
Does the combined might of WikiTree have any other suggestions?