Laura: I am responding to your inquiry. My father's name is Sjoerd (George). Jan Westra's parents were Sierd Westra and Hendrikje Dijkstra (Dykstra). I have not been able to find genealogy beyond that.You may be interested in your grandmother's genealogy Fidder (Fedders). You can locate that under schears.You can also pull up ellis island web site for date of the Westra arrival to the US. Happy searching, if you find more I would be interested.