Mignon was born in Dallas, Texas to Ruth Huffines and William Fountain Jarrell. She married William "Bill" Wydette McGinney. She was a member of Asbury United Methodist Church. She enjoyed bird watching, grandkids, being at the farm, gardening, helping her husband with the cattle business and being a homemaker. She also enjoyed being with her children and family, especially during the holidays.
Mignon is survived by four children, Scott McGinney, Cherie Sexton, Stuart McGinney, Sandy Crenshaw and one sister, Barbara Faber. She was blessed with fourteen grandchildren,and eighteen great grandchildren.
Mignon was preceded in death by her husband, parents and grandson Matt "Rattlesnake" McGinney.
In lieu of flowers, donations maybe made to Matt McGinney Memorial Fund, PO Box 606, Junction, Texas 76849.