HENDERSON, Neb. -- Nearly 50 gravestones have been pushed over and some damaged at a south-central Nebraska cemetery. Hamilton County Sheriff Kirk Handrup says his investigators had some leads, but no arrests have been reported. A man who lives near Farmers' Valley Cemetery discovered the damage Tuesday morning. The cemetery was established in 1876 along the banks of the Big Blue River south-southwest of Henderson. The cemetery association is offering a $1,000 reward to help solve the case.