[4] Since 1973, the Morris County Park Commission has owned and operated the mill and its 14 surrounding acres as a historic site.

Images of America: Chester claims Younglove's mill burned down in an unspecified year,[5] while the Morris County Park Commission describes his endeavor as having shut down in 1788.

[3][9][12] The new building employed the use of "four sets of millstones connected by elevators to grain cleaners and flour sifters."

[9] Abram W. Cooper was described contemporaneously as a man whose "life had been quiet and uneventful, but upright and honorable...devoted to his business interests and the requirements of citizenship.

[16] In the 1880s, Milltown experienced bustling economic success, and the Cooper mill "played a key role in the community and the region's industrial development."

[9] In an unknown year, the Old Mill Tavern pub was built atop the site of the Milltown general store.

"[3] After its acquisition in 1973, the Morris County Park Commission converted the Abram Cooper home into a Visitors' Center.

[19] The Friends of Fosterfields and Cooper Gristmill, a non-profit organization, contributes money and expertise to run the mill.