Originally built in 1866–67 to house a private academy and the local Masonic lodge, it is notable as an early design of Charles F. Douglas, a Maine native whose career began in Somerset County.

[1] The Grange hall is a 2+1⁄2-story wood-frame structure, set facing northeast on a triangular lot at the junction of Upper Main Street and Mercer Road (United States Route 2).

The entrance opens to a vestibule, with a staircase going up to the right, and a hallway down the center of the building leads past two smaller classrooms to a larger one at the rear.

The third floor, which was designed for use by the Masonic lodge, has two storage rooms and a large function space with raised platforms on the sides, and ornamental plasterwork in the ceiling.

Rising enrollments prompted Eaton to retain Charles F. Douglas to design this building, which was erected in 1866–67, with funding support from the local Masonic lodge.