I went through the list of Belgian helpers that I obtained from National Archives II in College Park, Maryland, looking for those from cities and towns near the Dutch border where I think there were or might have been people with connections to the Smit-van der Heijden Line. The names of the cities and towns are listed below. Click on the link for the city or town to go directly to its list of helpers.
- Baarle-Hertog (for Baarle-Nassau, see Dutch Helper list)
- Oud Turnhout