Hi again, Thanks for the link. Sarah Rector on the list is age 3, and I can't interpret what year this is. Place seems to be Oklahoma? Matilde's siblings lived in Indiana ca 1843, Illinois ca 1853, and Missouri ca 1857 (based on the birth places in the 1860 census). In other words, I don't think Sarah on the Dawes Rolls is Matilde's sister. She could be a child in a related Rector family, however. The Rectors got married in 1841; would be good to find the 1850 census listing them.
1860 US Census Madison, Mercer, Missouri C M Rector 44 born about 1816 Tennessee, race white H A Rector 37 born about 1823 North Carolina, race white J L Rector 17 born Indiana Jesse Rector 15 born Indiana S E Rector 13 born Indiana L C Rector 12 born Indiana Heneretta Rector 7 born Illinois G W Rector 3 born Missouri M C Rector 1 born Missouri - race white <-------