Ezra Job Birney Southworth, the only son of Deacon Ezra Southworth who built the house associated with this site in 1840, built this barn in 1889. The barn was originally an English style barn likely used for hay storage until 1899 when it was converted to a horse barn, with stalls on the northwest side of the structure and a tack room on the southeast side. In the early 1900’s the barn was converted again to accommodate automobiles.
The oldest portion of the barn is a square rule timber framed structure with pegged mortise and tenon joints. The 1899 expansion phase is of post and beam construction, mortise and tenon fastened by wire nails and cross gable roof. The final addition used balloon framing and a trussed roof.
In 1991, The Deep River Historical Society renovated the interior of the barn for use as a social meeting room. The original posts and beams are still visible in the interior of the main room.