General Nicholas Herkimer's grave remained unmarked until 1847, when a grandnephew purchased headstones for Herkimer, his first wife Maria, and his brother and sister-in-law, George and Alida. In 1895, the State of New York purchased two and two-fifths acres of the former Herkimer estate, including the Herkimer family burial ground. A year later, the state erected a 50-foot-high monument in honor of Herkimer and built the stone fence around the cemetery. The ground also contains the graves of former owners of the property, their relatives, and their neighbors, in addition to members of the Herkimer family.