Gardner, J. W. Southwestern Land Co. at the original William Jennings Bryan farm; 1,000,000 people in the Lower Rio Grande Valley in 5 years - excursion party, photograph, April 8, 1929; (https://texashistory.unt.edu/ark:/67531/metapth17251/m1/1/: accessed May 21, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .