Its funny you should reply today. Last evening I was at the Family History Library to look at the newly arrived church books for my Gamm and Falkenhagen ancestors.
I discovered that my g-g-g-grandmother was Magdalene Dorothea Christina Gamm, born Oct 2, 1801. Her parents were Johann Gotfried Gamm and Anna Cathrina Dorothea Hoepner(?). Now, I haven't confirmed the exact spelling of these names yet, as this was just last night...
I'll be going back to look at the documents again next week, and will look for a Johann Gamm born 1830 whose father is Johann Gamm and mother Magalina.
These families lived near the village of Wichmannsdorf, near Kropelin, Mecklenburg. You can find it on Google Maps, searching for Wichmannsdorf, Mecklenburg. It will give you three options, choose the one under Bad Doberan.
I'll look forward to making this connection!