The creator of this Find a Grave memorial says Hester Ann Smith was full Cherokee.
Find a Grave Memorial to HESTER ANN SMITH (married name Rector) Birth: Aug. 19, 1824 Death: Feb. 10, 1862 Buried Old Union Cemetery, Mercer County, Missouri (but see note on the website). "Died during childbirth. Nationality-Cherokee. Reported to be full Cherokee."
Find a Grave Memorial to Charles Millard Rector (1820-1895) Burial Old Union Cemetery, Mercer County, Missouri Served with Co K 1st MO State Militia Cavalry
Find a Grave Memorial to Matilda's sister Sarah Elizabeth Rector (married name Brown) (1848-1923). An obit is included. It says she is survived by "one sister, Mrs Matilda Gibson of Leon, Iowa and two bothers, Pete Rector of Kansas City, Mo and George Rector of St. Louis, Mo and 2 half sisters, Mrs. Betty Norris of Trenton and Mrs. Belle Roberts of Mill Grove, also 1 half brother, Eli Rector of Mimburn, Iowa." http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=36728447http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=36728447