The Louisiana Purchase of 1803 resulted in a giant wave of American migration westward. In the 1820s and 1830s, Native American Indians were also moved, by the government, from their homelands in the southeastern United States into northwestern Arkansas and the Indian Territory of what is now Oklahoma. These were times of rapid change, conflict and violence on the frontier as America grew westward. Competition for land created conflicts between white settlers, newly arrived Indians, and the tribes that had called this land home for centuries. This is the story of a family whose members were an integral part of this piece of American history. Kentuckian Marshall Crawford and Tennessean Rebecca Sinclair were among those southern immigrants. They married young, in the Arkansas Territory, during its turbulent 1820s, and then moved their family to Texas in 1843. They and their children helped settle the Texas frontier. Their children and their children's descendants spread throughout Texas, and in some cases beyond its boundaries. A History of the Family of Marshall and Rebecca Sinclair] Crawford helps explain the history of the settlement of this region of America, from the perspective of one family's experiences.