Sytze adopted the surname "Hijmstra", 1811 at Heeg
http://www2.tresoar.nl/genealogie/naamsaanname/toonna.php?inv=29_91&mairie=Heeg&folio=134&verso=&achter=ja
Uiltje Pieters Also written as Uilke Pieters adopted as family name "Wierdsma", corrected in "Wiersma" at Heeg in 1811-1812
http://www2.tresoar.nl/genealogie/naamsaanname/toonna.php?inv=29_91&mairie=Heeg&folio=135&verso=&achter=ja
Hylke Pieters adopted the family name "Wiersma", 1811-1812 at Heeg.
http://www2.tresoar.nl/genealogie/naamsaanname/toonna.php?inv=29_91&mairie=Heeg&folio=118&verso=&achter=ja