She was a twin to Mahala. (SV-1588.6)
1870 Letcher Co., KY Census (Ancestry.com): Thomas Hall, aged 29, (living in Whitesburg next door to parents) and wife, Martha (27) and 5 kids: Matilda (7); Melven (5); Diadema (2); and twins Mahala (3/12) and Fanny (3/12).
1880 Letcher Co., KY Census (Ancestry.com): Thomas Hall, aged 40, (living in Whitesburg) and wife, Martha (40) and 10 kids: Matilda (16); Melven (14); Diadema (13); twins Mahala (10) and Fannces (10); Thomas (9); William (7); John (6); Elizabeth (4) and Angaline (1).
1900 Letcher Co., KY Census (Ancestry.com): Not found.