John, There is a Maple Grove Cemetery in Lapeer County in North Branch. It is South of M-90 (North Branch Road) on Slattery Road, on the east side. GPS Coordinates: Latitude: 43.22420, Longitude: -83.13610. This is really only a mile or so inside the county line, very close to Sanilac County. As far as I can tell, there is not a Maple Grove Cemetery in Sanilac County.