[Postcard from Cornelia Yerkes to Fred G. and Frances Yerkes, November 17, 1944], postcard, November 17, 1944; (https://texashistory.unt.edu/ark:/67531/metapth1296500/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .