If you are in the Cincinnati, Ohio area today (the 18th), Spring Grove is having an Open House.
http://www.springgrove.org/event-details.aspx?id=353&title=Arboretum+and+Volunteer+Center+Open+House
The concept for Maple Grove Cemetery in Wichita was developed after A.A. Hyde visited Spring Grove.
Spring Grove on BillionGraves, Find-A-Grave, GenealogyTrails (only has latitude and longitude, no grave information), Interment.net (limited grave information), Sons of Union Veterans grave database (need to type in the cemetery, city, county, and state; it has 3,757 names), and USGenWeb’s Tombstone Project (limited grave information) . Find-A-Grave has 202 memorials under the Famous category.
