There are no surviving 1821, 1831, 1841 census records for Co. Waterford. Some records for Waterford are available for 1851 but none in Drumcannon parish. www.census.nationalarchives.ie
I looked at the 1850 Griffiths Valuation head of household listing for Drumcannon parish.There were a number of Hunt entries including two Arthur P. Hunt Esq. entries.
I located an 1865 civil death index record for an Arthur Powel Hunt.Possibly this is your ancestor.
|First name(s)||Arthur Powel|
|Age at death||86|