Harriet Fanin (maiden name: Robertson) was born around 1840 in Georgia to Samuel Robertson and Celia Martin. Her father was a farmer who owned $5,500 of real estate and $1,700 of personal property in 1860. The family lived in Cobb County, Georgia. Sometime in the 1860s, Harriet married a man whose last name was Fanin, but he probably died before 1870. She lived with her parents in Acworth, Georgia, until at least 1880. She died around 1915 in Georgia.