Hello Robert,
The 1856 Valuation is your starting point. You may be able to use the Valuation to pinpoint a possible date of death, a family emigrating or even find a living relative as there are other books which unfortunately tend not to be online.
The Valuation of 1848-64 was known as the Primary Valuation. Three notebooks were used.
1. Field Books: Information on the size & quality of a holding
2. House Books: Occupiers name and measurement of any buildings
3. Tenure Books: Annual rent paid and legal basis - whether by lease, or at will, also the year of any lease.
These notebooks also document any changes in occupation between the initial survey and the final published survey.
The valuation office holds the 'Cancelled' / 'Revision' Land Books & Current Land Books.
The 'Cancelled Land Books' and 'Current Land Books', give details of all changes in the holdings, from the time of the Primary Valuation up to the present day.
Christopher