My records show a Nancy Palmer (1823-1891) married to Charles Keck (1806-1891). My great great grandparents were John Keck (1820-?) and Maria (no last name in my files)(1831-1862).
Are these the people you're asking about? If I can find the right hard drive, I have pictures from the McDonaldsville Cemetery. I know I have Maria. John's stone is missing, but I believe I have Charles and Nancy.