Casper, Willie H., Jr.. Pictorial History of Fort Wolters, Volume 2: Primary Helicopter Center Personnel, Book, n.d.; digital images, (http://texashistory.unt.edu/ark:/67531/metapth24854/ : accessed May 22, 2013), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting Boyce Ditto Public Library, Mineral Wells, Texas.
