Johnson is a surname of Danish, English, Scottish and Swedish origin. The name itself is a patronym of the given name John, literally meaning "son of John". The name John derives from Latin Johannes, which is derived through Greek Ἰωάννης IÅannÄ“s from Hebrew ×™×•×—× ×Ÿ Yohanan, meaning "Yahweh has favoured".
Norton is a surname with origin from the basic Early English norþ + tun, meaning North settlement (cf Weston, Sutton and Easton for other surnames derived from points of the compass). ... When surnames started to be used in the Middle Ages, a man from such a village might have the name added e.g. Tom of Norton.