I hope you have found the answer to your question by now, however, I have some information as follows;
Henry Frederick Chenery was born in Great Yarmouth in the autumn 1868. He lived with his aunt Elizabeth Clarke nee Chenery, who came from Mendham Suffolk.She had 3 sisters and 2 brothers who could possibly be Henry's father.
Henry married Ellen Blaza in 1892, probably in Hardley.
The next time I visit Norfolk Record Office, I will look up Henry's marige to see if his father's name is given.
His grandparents were William Chenery 1811/1891 & Harriett 1815/1903.