Oak Grove Cemetery Info. Oak Grove Cemetery is also known as Greider Cemetery. It is located at the intersection of Epworth Forest and County Road 975 E. in Tippicanoe Township of Kosciusko County, Indiana. It is about 1/2 mile east of the north edge of Lake Webster. The cemetery is surrounded by the Tri-County State Fish and Wildlife area. It was read on 27 Sept 1976 by L. H. Binnie and checked against D.A. R. records and other verified data. When the cemetery was originally read, it was well maintained.