<prompt> Hansen dә suro International Jury of Horticultureye Worlds Fairye St. Louis, Missouriye dәn kara  <response>: saa 1904 lan kuru wakil lardǝ United Statesbe kǝla First International Congress of Genetics lan London, England lan saa 1906 lan. Shiye saa kadaro cidiya South Dakota Horticultural Societybe ro cidazәna. Suro saa 1949 lan, gargam donyi Dr. Hansen-a cidawanzə-a notǝye suro campus South Dakota State College ye dǝn gartǝna. 