Fentress, Maud C. [Letter from Maud C. Fentress to David W. Fentress, September 6, 1859], letter, September 6, 1859; (https://digital.library.unt.edu/ark:/67531/metapth160235/m1/1/: accessed June 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .