A Genealogist in Worcester has written in with the following information, after seeing our website.

Henry Nicholas Sealy was baptised at St. Mary's Bridgwater 20 April 1783 oneof the twin sons of Edward & Mary Sealy.
In 1841 he lived at Castle Street Nether Stowey with his twin brother George
both of independent means.
In 1851 he was J.P. for the County of Somerset of Castle Hill House Nether
Stowey with his brother George.
In 1861 he was a Magistrate and landed proprietor at the same address with
his brother.
In 1871 he was Magistrate for Somerset at the same address still with his
brother.
Henry died in 1875 aged 92 and was buried 6th July according to St. Mary's
register.