Jackson is a cultivar of the American Elm U. americana, selected from Wichita, Kansas, reputedly shewing no signs of disease damage at > 50 years of age. However, the tree had not been tested (< 1995) by artificial inoculation. Listed in the Fall 1994 - Spring 1995 catalogue of Arborvillage Farm Nurseries, Holt, Missouri, it is not known whether Jackson remains (2006) in commercial cultivation.