John Mortvedt (1932–2012), agronomist and soil scientist who was the world's leading expert on micronutrients; born and raised on a farm near Dell Rapids
^"Allen Neuharth". South Dakota Hall of Fame. Archived from the original on December 28, 2008. Retrieved December 13, 2008.
^Niels Ebbesen Hansen 1866–1950 (South Dakota History. Volume 17 Number 1) "Dakota Profile - N. Hansen". Archived from the original on January 4, 2010. Retrieved 2009-09-02.