Note, there are other places withe this name:
Witmarsum, Santa Catarina, Brazil
Witmarsum is a small village in Wûnseradiel in the province Friesland of the Netherlands and has around 1804 citizens (2004). It is the birthplace of the Anabaptist leader Menno Simons (1496–1561).
Witmarsum
Sûdwest Fryslân
Friesland
Netherlands
The town has not yet been linked to an archive in the ArchiefWiki.