Thanks for that Ken.
I am happy to create the database entry but which do you think is the preferable option of the two you mention, to contact the photographer or admin. I would consider that the more certain method would be for admin to deal with it as the photographer may have moved on, not care, etc.
I will continue to create entries for others as yet not entered to the database as I find the time and am willing to assist further in any you may wish.
I am re-assured that you have plans to ,as it were, "do a bit of sorting out". 'Unknown' is one example as are the several or many duplicated entries.
Malcolm.