Hello Paul,
I visited today the archive in Vechta and checked a lot of church books.
Now I could find the (double) marriage record in the parish Lindern:
oo 5.May.1826 in Lindern
Herm Heinrich Hülskamp aus der Pfarre Essen/Oldenburg
und die Helena Catharina Ortmann aus der Pfarre Lindern
Testes: Bernd Anton Meyer, Bernd Meyer
oo 5.May.1826 Lindern
Heinrich Anton Ortmann aus Grosse Iing (Grosse Ging)
und Helena Margaretha Heisen ex Oldendorf, Kirche Lastrup
Testes: Bernd Anton Meyer, Bernd Meyer
I think this help.
Werner