The 1870s and 1880s provided sales opportunity to the Colt company via the spread of European-American society ever further westward across the continent, and the demand for firearms that it engendered in various ways. As white Americans displaced Indians from the Indian Territory, both sides were eager for firearms. On the white side, both the U.S. Army and civilians were customers of Colt. The Army carried Colt revolvers through the last of its Indian Wars. On the Indian side, Colt weapons were captured when possible, or bought from whoever was selling. Even among whites in towns where Indians had been vanquished, a thriving demand for guns existed, from the criminals to the police to self-defending civilians. Memoirs of Americans including Walter Chrysler and Jack Black speak of what it was like growing up in Western towns where most people had guns and open carry was common (such as in Kansas and Missouri, which were considered "out West" at the time—now considered the Old West).