M. Caldwell Butler is a native of an independent city in Virginia, that is located in the Roanoke Valley, and had what population in the 2010 census?
M. Caldwell Butler:  A native of Roanoke, Butler served his hometown and wider community first as a Republican in the Virginia General Assembly and later the U.S. Representative. Roanoke, Virginia: Roanoke is an independent city in the U.S. state of Virginia.
i don't know