Millville is a hamlet in the town of Shelby in Orleans County, New York, United States.
[1] First settled in the mid-1810s, Millville grew as a result of the mills located there to tap the abundant water available in the three streams that run through the hamlet.
Castle and Son General Store is a two-story, three-bay commercial building constructed of locally quarried stone and sited at an important crossroads location.
Under the operation of Thomas Oliver Castle, a prominent member of the community, the store served as the geographical and social center of the hamlet of Millville, providing for the needs of a growing farm community and the staff and students of the Millville Academy until the 1870s.The building is also significant as one of a small number of documented stone commercialbuildings in New York State and as an example of a modest Greek Revival-style store.
In the 1870s, the hamlet had an academy, three churches, a grocery, dry goods store, tannery, foundry, wagon shop, school, post office, and a cluster of about 30 houses.