I have had a look to see if there is a copy of the original entry for your ancestor, but there is only the transcribed copy. To get a copy of the original, you will probably have to visit, or get someone to visit the archives for Dorset, and the Parish of Hampreston. Then, you would be able to obtain a copy of the page from the register which holds this marriage. There would be no further details on the register, other than the name of the Church (eg. All Saints).