Family History and Genealogy Resources by Surname
Seward Surname Origin
High admiral, who kept the sea against pirates, from sea, and ward, a keeper.
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.
Seward Surname Meaning and Family Facts
There is more to Seward family history than the origin of your surname:
A Seward Family History Thought:
'The past isn't dead. It isn't even past.' --William Faulkner