The Ancient Law by Ellen Glasgow

The scattered houses closed together in groups, the road descended gradually into a hollow, and emerging on the opposite side, became a street, and the street slouched lazily downhill to where a railroad track ran straight as a seam across the bare country. Quickening his steps, Ordway came presently to the station -- a small wooden building newly painted a brilliant yellow -- and pushed his way with difficulty through a crowd of Negroes that had gathered closely beside the waiting train.

"Thar's a good three hundred of the critters going to a factory in the North," remarked a man behind him, "an' yit they don't leave more'n a speck of white in the county. Between the crows an' the darkies I'll be blamed if you can see the colour of the soil."