Yes, John is Henry's son, but Emma is not his mother - unless she gave birth age 14.
http://interactive.ancestry.co.uk/75...nSearchResults
1881 Newbiggin Street
Henry Stubbs, 43, cabinet and plain maker, b Darlington
Emma Stubbs, 29, b Portobella, Staffs
John Stubbs, 15, paper hanger and painter, b Bishop Auckland
Frederick Stubbs, 8, scholar, b Bishop Auckland
William Henry Stubbs, 7, scholar, b Bishop Auckland
Ellen Stubbs, 4, b Bishop Auckland
Clark John Robinson, 24, boarder, cabinet maker, b Bishop Auckland