MLA
J., McWhorter. Letter from J. McWhorter (Camp Greenwood, Alabama) to His Wife, Mrs. L. H. McWhorter, Describing His Boredom with Army Life and His Hope of Getting a 40-Day Furlough to Return Home - September 16, 1864. 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 14. https://digital.library.emory.edu/purl/764gmsbdfs-cor.
APA, 6th edition
J., M. W. (1864). Letter from J. McWhorter (Camp Greenwood, Alabama) to his wife, Mrs. L. H. McWhorter, describing his boredom with army life and his hope of getting a 40-day furlough to return home - September 16, 1864 (Box 5, Folder 14) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbdfs-cor.
Chicago
J., McWhorter. “Letter from J. McWhorter (Camp Greenwood, Alabama) to His Wife, Mrs. L. H. McWhorter, Describing His Boredom with Army Life and His Hope of Getting a 40-Day Furlough to Return Home - September 16, 1864.” Letters (correspondence). Civil War Collection, 1864. Box 5, Folder 14. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/764gmsbdfs-cor.