“Mr. Jones, who was one of Wright’s best-known pupils, created the Ozark style of architecture, a term he considered misleading because his work extends from coast to coast and can be seen in cypress swamps, cotton fields and crowded urban lots as well as on the hills of his native Arkansas… In 2000 Mr. Jones’s Thorncrown Chapel in the Arkansas Ozarks was voted the fourth-best building of the 20th century by the American Institute of Architects after Wright’s Fallingwater and the Chrysler and Seagram buildings in Manhattan.”
Obituary here from the New York Times. And to look at Thorncrown Chapel (pictured at left) in more detail, go here. (Thanks to Shabbir Kazmi for bringing this to my attention.)