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In all the world, Sjoert (Sjoert ) is a very rare boy's first name. Very seldom, Sjoert is the last name as well as the forename.
Stel, Ketelaars, Zuidhof, Valkema, Elzinga, Bossers, Bolhuis, Benthem, Schenau, Fleurke, Vijfschaft, Visser, Spierenburg, Jansen, Kramer, Bakker, Snoert, Vroom, Brink, Coene, Moors, Veur, Laan, Post, Boer, Lamain, and Willemstein