Do you have a birth day and month for Robert Jones? I'm guessing he was born in Somerset, England, if so, it narrows the possibilities. There were men named Robert Jones born elsewhere in England and one in Ireland.
Robert Jones
England and Wales Census, 1841
birth:
from 1807 to 1811
Somerset
residence:
1841
Chipstable, Somerset, England
Robert Jones
England and Wales Census, 1841
birth:
from 1807 to 1811
Somerset
residence:
1841
East Quantoxhead, Somerset, England
Robert Jones
England and Wales Death Registration Index 1837-2007
birth:
1809
death:
1887
Williton, Somerset, England
Robert Jones
Vermont, St. Albans Canadian Border Crossings, 1895-1954
birth:
Staffordshire Stone England
immigration:
from 1895 to 1924
Vermont, United States
Robert Johns
England and Wales Census, 1841
birth:
from 1807 to 1811
Somerset
residence:
1841
Staple Fitzpaine, Somerset, England