Family History and Genealogy Resources by Surname
Sheldon Surname Origin
(Origin Cornish British) Locality. The spring in the valley, from schell, a spring, and dene, a small valley.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Sheldon Surname Meaning and Family Facts
There is more to Sheldon family history than the origin of your surname:
A Sheldon Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner