Kafka, Cornelia V. Yerkes. [Letter from Cornelia Yerkes, February 23, 1945], letter, February 23, 1945; (https://texashistory.unt.edu/ark:/67531/metapth1296482/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .