sentences:  More mill development took place after the American Civil War, when railroads reached the region.Among the owners of new mills in the area were men of the rising black middle-class of Wilmington, North Carolina, such as John C. Dancy (appointed as collector of customs at the port), and others.Warren Clay Coleman, a Concord African-American businessman, joined them in organizing Coleman Manufacturing Company in 1897, on a site about two miles from Concord.