Chamberlin, Rose. [Postcard from Rose Chamberlin to Junia Roberts Osterhout, August 14, 1907], postcard, August 14, 1907; (https://texashistory.unt.edu/ark:/67531/metapth244046/m1/1/: accessed May 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .