The 1870 Mortality Schedule for Arkansas places Gainum Brightwell in the household of Sarah Brightwell (U.S. census for Izard County, AR, 1870, pp. 268) There is a land record in Independence County dated 1 Jan 1866, Gainum Brightwell and wife to S.D. Bettes. Gainum signed with his mark and Sarah M. Brightwell signed with her mark. I do not have the reference page but I do have a copy of the record. These two records are the only proof I have of Gainum's third marriage. I think Sarah was quite a character, I have more information on her. The child, Gaine, listed on the 1870 census with Sarah shows up in a Sheffield family Bible, he died in Aug 1872. I have copies of the record. Minnie Brightwell did marry and have children, she was my great grandmother. She married Joseph Gray on 5 Mar 1883 in Independence County AR. They had seven chidren, Ida Pearl, Ella Beatrice, Leffel Ewing (my grand father), Alva Edith, Nobel Octavis and Joseph Ralph. Joseph Gray was born 14 Aug 1862 in Cumberland County, KY, he died 21 Jul 1898 in Erath County, TX. Minnie Brightwell was born 9 Apr 1866 in Independence County,AR, she died 18 Jan 1941 in Nolan County, TX. I have information on all the children if you are interested.