Eastman Kodak Company. Photograph of Sam Rayburn and his sisters, Katherine (Rayburn) Thomas and Medibel (Rayburn) Bartley, photograph, February 2, 1957; (https://texashistory.unt.edu/ark:/67531/metapth183482/m1/1/: accessed April 18, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .