Sallie Ann Mullins
Sallie Ann Mullins was the mother of John Preston Mullins, who was born in Wise County, Virginia, on 20 March 1860 and died at Skeetrock in Dickenson County in November 1933. His Virginia death certificate names his parents as Dock P. Mullins and Sallie Ann Mullins. Her maiden name is not known.
In 1870 the census taker in Walker district of Wise County, Virginia, wrote down a Mullins household that fits this family closely. The head was a man of 37, born in Virginia, whose given name he spelled Dbeton, and with him were Sarah J., 32, a Virginian, and six children: William P., 15, Rozetta, 13, John P., 11, Pernetta A., 8, Tryfannah, 4, and Orrara, 1. John P. is the right age to be John Preston, who later named a daughter of his own Tryphanny. The household is very probably Dock P. and Sallie Ann Mullins with their children, though no record of the time states the link.
Sallie was a common pet form of Sarah, so the Sarah J. of 1870 and the Sallie Ann of the certificate may well be one woman. If so, she was born about 1838 and had her first child at about seventeen. When and where she died is not known.
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Cite: Heirology, "Sallie Ann Mullins (b. 1838)", https://heirology.com/ancestors/sallie-ann-mullins-1838-eeec0a.