Allensford was first recorded as Aleynforth in Bishop Hatfield's survey of c. 1382.[1][2] The placename is sometimes listed as Allansford; "At Allansford...is a bridge over the Derwent into Northumberland, surrounded by some of the most beautiful scenery on that stream; there are a few cottages on each side of the river".[3]
It is uncertain when a bridge replaced the ford. However, a bridge was in existence in the late 17th century when the structure was in a "very ruinous and in greate decay” according to the Northumberland Quarter Sessions for 1687–1697.[4]
Allensford Mill farmhouse was originally called the Belsay Castle Inn, named after the estate of the Middleton family of Belsay Castle.[5] Part of the inn was built in the late 17th century and may have been a bastle. Later additions continued throughout the 18th and 19th centuries. The inn was licensed until 1869. The upper room in the outbuilding served as a nonconformist chapel.[6]
Denis Hayford (c.1635–1733), a pioneer of the steel industry, acquired the lease of Allensford furnace and forge in 1692; this was upstream from his established business in Shotley Bridge. The lease seems to have lapsed in 1713. The site of the furnace is marked on Ordnance Survey maps.[7]
