MLA
Thrasher, Albert M. Letter from Albert M. Thrasher (Petersburg, Virginia) to John Stovall. In the Letter, A. M. Thrasher Informs John Stovall of the Death of His Son in Combat, Robert G. Stovall. Robert G. Stovall and Thrasher Served in Company D of the 3rd Georgia Infantry Regiment - August 22, 1864 (Typescript). 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 54. https://digital.library.emory.edu/purl/098z8w9h6f-cor.
APA, 6th edition
Thrasher, A. M. (1864). Letter from Albert M. Thrasher (Petersburg, Virginia) to John Stovall. In the letter, A. M. Thrasher informs John Stovall of the death of his son in combat, Robert G. Stovall. Robert G. Stovall and Thrasher served in Company D of the 3rd Georgia Infantry Regiment - August 22, 1864 (typescript) (Box 6, Folder 54) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/098z8w9h6f-cor.
Chicago
Thrasher, Albert M. “Letter from Albert M. Thrasher (Petersburg, Virginia) to John Stovall. In the Letter, A. M. Thrasher Informs John Stovall of the Death of His Son in Combat, Robert G. Stovall. Robert G. Stovall and Thrasher Served in Company D of the 3rd Georgia Infantry Regiment - August 22, 1864 (Typescript).” Letters (correspondence). Civil War Collection, 1864. Box 6, Folder 54. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/098z8w9h6f-cor.