Manaigo, A. [Letter from A. Manaigo to Lee Guth, May 26, 1956], letter, May 26, 1956; (https://texashistory.unt.edu/ark:/67531/metapth1384544/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .