After considerable amount effort and assistance from many people, the genealogy of the Oudkerk branch of the Sinnema family has been collected. Please follow the links below.
Sinnema Family Genealogy
Necessarily, there will be errors and omissions. Please send any changes or comments to me.
Please also kindly visit the website of my friend Ben Sinnema. He has done extensive work on the Sinnema family. His website is published in Dutch.