Ok I searched for Thomas Adams and varients on findmypast 1841 census. It came up with this:
Household ADDAMS, Thos 1832 9 M Hitchin Hertfordshire
If I had the credits I would have a look but unfortunately can't. This looks promising though.
These are others living nearby with spelling Addams:
ADDAMS, George 1827 14 M Hitchin Hertfordshire
ADDAMS, John 1796 45 M Hitchin Hertfordshire
ADDAMS, John 1829 12 M Hitchin Hertfordshire
ADDAMS, Mary Ann 1826 15 F Hitchin Hertfordshire
- Lucia