Seadon Family History
Seadon Name Meaning
perhaps from Seething (Norfolk) which is recorded as Sithinges in 1086 Seinges in 1181 Sithing in 1323 and Sethyng in 1450. The place-name probably means ‘(place of) the people of a man called Sīða’ from an Old English personal name *Sīða + the group-name suffix -ingas. see Seddon .
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016