I had long ago been told that Oyston was the name of a King of Norway, and that Oyston was a common name there, but I was unable to find any Oystons in the Oslo or Bergen phone books.
It turns out that Oystein is a Norwegian first name, for example there is a Norwegian composer called Oystein Sevag.
There was a King Oystein of Norway from 1103 to 1122, called Oystein Magnusson. He ruled for his brother, Jerusalemfarrer Magnusson, who was away at the Crusades. He was, apparently, a good King, who founded several towns including Kabelvag in the Lofoten Island group of Northern Norway.
Oyston Home Page
Revised Aug 2007