2016-06-212016-06-211991Wrobel, David M. "The Closing Gates of Democracy: Frontier Anxiety Before the Official End of the Frontier." American Studies 32, no. 1 (1991): 49-66.http://hdl.handle.net/11244/42362Published in American studies, volume 32, number 1, pages 49-66.19 pages1,892,324 bytesapplication.pdfFrontier and pioneer life -- United StatesFrontier thesisUnited States -- Territorial expansionLand use -- United States -- History -- 19th centuryUnited States -- History -- 1865-1898The closing gates of democracy : frontier anxiety before the official end of the frontierArticle10.1353/amsj.v32i1.2892