Kafka, Cornelia V. Yerkes. [Letter from Cornelia Yerkes, October 7, 1944], letter, October 7, 1944; (https://texashistory.unt.edu/ark:/67531/metapth1296222/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .