Louis Dean, Louis Gerlach and Henry Flak bought the Ward Brother's Cattle Outfit in 1884. The purchase included water rights from Pyramid Lake to the Oregon border.<ref>"Passing of Last Pony Expressman." (Obituary of Louis Dean), San Francisco Chronicle, March 30, 1913, p. 28.</ref><ref name=nsj1913>"Recall Tales of Louis Dean," Nevada State Journal, April 2, 1913, p. 3.</ref> Dean was to be the business manager and the sale was for $150,000.<ref>"A Big Sale," Reno Evening Gazette, April 25, 1884, p. 3</ref>
Dean died in San Francisco of Bright's Disease in 1913.<ref name=nsj1913/>
Louis Dean was not the last Pony Expressman.<ref>"Orphans Preferred: The Twisted Truth and Lasting Legend of the Pony Express," Christopher Corbett.</ref>
- San Francisco Chronicle, "Death on the Desert" (from the Reno Journal), August 11, 1889, p. 12. Louis Dean reports the death of a L.H. Long from Roseburg, Oregon. Long died within two miles of Granite Station. "He had wandered back within site of the ranch - probably delirious, looking for water. The ground was torn and dug up in every direction."