Hallo Hans Peter,
It is an interesting suggestion that 'Han'(over) is part of the surname but the column for the place of birth (Hanover) is after the 'occupation' column. Out of curiosity, I have looked for a marriage for Ernst/Ernest during the years 1862-1887 in the census town of Hull, England. There is currently no surname published beginning with "G" which made me pause for thought.
I did not think to Anglicize the name of "GR�NTHAL" to GREENHALL, which is now associated with English beer.
Cheers,
Rena