MerkFN: said by the Jost FSL to be fromUC Muensingen, Schwaben. I could not find this family in the 1798 Volga censuses.
MerkFN: said by the Laub FSL to be fromUC Fischbach, Falkenstein. In 1798 spelled Moerck and Merck (Mai1798:Lb6, Jo35).