Mr. Ekelmann,
I am also researching the Mestemaker family from Neuenkirchen bei Voerden. My ancestor is Elizabeth Mestemaker, born May 1833. Her brothers were Franz Joseph born August 1828, Johann Heinrich born December 1830, and Franz Heinrich, born September 1840.
All 4 Mestemaker siblings emigrated to Cincinnati, Ohio.
Is there any connection to your Mestemaker family?
Thanks very much,
Susan from Cincinnati