The city of Holyoke, Massachusetts is an old paper-mill town built in the mid-19th Century, planned around canals that distributed the water power of the dammed-up Connecticut River to numerous mills. The paper industry in Holyoke is virtually all gone, but the local electric utility still generates power from the water.
These low-rise apartment buildings caught my eye. In some ways, they resemble public housing in New York and other large cities, but their fairly high-quality construction (e.g. copper-roofed entrances) didn’t seem like low-cost, 20th Century public housing. Sure enough, an old map in the Visitors’ Center identified them as mill workers’ housing (Lyman Mills?).