My great great grandfather was named Joshua Thomas Harbison (b. 1834 in Illinois) who married Mary C. Fly (b. 1834 in Tennessee) in 1853 in Tennessee.According to my grandfather, he went by the name of Thomas, and was a schoolteacher in Tennessee (Maury or a nearby county, like Hickman), and died at the age of 30. They had four children, George W. (b. 1856), Susan A.T.(b. 1858) and J. Robert (b. 1860), as well as one whose name I don't know (b. 1855?). Any picture of them would have to be a daguerrotype, or something like it.