[Letter from Mattie Wallace], letter, Date Unknown; (https://digital.library.unt.edu/ark:/67531/metapth203933/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
[Letter from Mattie Wallace], letter, Date Unknown; (https://digital.library.unt.edu/ark:/67531/metapth203933/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .