Dallas County (Tex.). Dallas County Probate Case 1956: Keller, W.J. (Deceased), legal document, 1887-03-18/1894-06-27; (https://texashistory.unt.edu/ark:/67531/metapth600876/m1/1/: accessed June 24, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .