According to what I've located so far, Selma was born 4 Jun 1911, in Bath County, Virginia, a daughter of Harmon and Nellie (Thacker) Smith. She died Selma F MacPherson, at the Heartland Nursing Home, in Beckley, WVa, 28 Sep 1998.
Alvonia Dee (Alderman) Smith is Sam and Selma's daughter. She married Keith Lanier Smith in 1953. I've no idea whether Keith was related to Selma's father. I have my doubts.
I'm not sure why she had 1/4 interest in land on North Fork. Someone will have to go to Marlinton and do a little research.