Family History and Genealogy Resources by Surname
Seaforth Surname Origin
(Locality). The name of a projection of the sea on the east coast of Lewis, on the Long Island, Scotland--'the forth or frith of the sea.'
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.
Seaforth Surname Meaning and Family Facts
There is more to Seaforth family history than the origin of your surname:
A Seaforth Family History Thought:
'If you would not be forgotten,
As soon as you are dead and rotten,
Either write things worthy of reading,
Or do things worthy of writing.' --Benjamin Franklin, May 1738