Your message caught my eye. I am also looking for info on the Riggs family of Colorado Springs, Co.
My son's father was supposed to be 1/2 Cherokee. His Grandmother was full blood Cherokee. She and her husband, Harvey Riggs, and I believe other close relatives are listed in the Cherokee Tribal Records.
If you have any other info at this time. I am also interested in any Riggs that are Cherokee's from the Colorado Springs, CO area.