Photographer O. N. Pruitt (1891-1967) was for some forty years the de facto documentarian of Lowndes County, Mississippi, and its county seat, Columbus--known to locals as "Possum Town." His body of work recalls many FSA photographers, but Pruitt was not an outsider with an agenda; he was a community member with intimate knowledge of the town and its residents. He photographed his fellow white citizens and Black ones as well, in circumstances ranging...