Hello
I saw your question as I had the warning of 2 replies when posting this reply.
Tried a quick Joseph Gratton search, No images on f m p.
However, there was a Joseph Gratton of Barlow marrying a Martha Parker 2nd January 1788 Dronfield Marriage (Printed Book only, which you may be able to find now online on Google Books etc., or on family search), but no Register images so you cannot see the witness signatures on this one, nor check the marriage image against the book for any printing errors.
Regarding the Inland Revenue Register
The one above for Benjamin Gratton (attachment previous thread page) has a note right hand end "Not Ent'd" so no entry for Benjamin in the Inland Revenue Register Book.
The entry for Joseph Gratton does seem to have a tick?
These are not like Manor Court records.
These were very summary notes (of varying diligence) recorded by officials at the Inland Revenue in Register Books about Wills (several or more Probates on one large Volume Opening separated by horizontal lines across both pages, with the Testator's name, brief address and a folio number).
Some have interesting summary notes of family or a property interest and some have little new information other than that which is in the Will.
Some even have notes about other people who married into the Testator's family before the death and some occasionally have a note/s beyond the death of the Testator, or few notes.
It is one of those situations that if I decide not to look at a document I won't know if it contains anything of interest or not.
However, this family history depends on your budget and some may say, well there is also a possibility of no new information, I don't think that amount is worth it.
Mark