[Letter from Independent Wholesale Grocers Inc., to Truett Latimer, April 21, 1961], letter, April 21, 1961; (https://texashistory.unt.edu/ark:/67531/metapth1273500/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .