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Found Sebastian Gunther's promotion 1870 G0#99
Also found explanation of his court-martial hearing please copy and paste link into your web browser. The Captain Gunther was re-instated in the Army their was evidence that proved he did actually charge with his Command and did not run away after the charge or Orders were given.
Information on Captain Joseph Rendlebrock court-martial hearings. https://books.google.com/books?id=EF9HAQAAIAAJ&pg=PA116&lpg=PA116&dq=Captain+Joseph+Rendlebrock&source=bl&ots=PIm7gRLba9…
Information on Captain William C. Hemphill court-martial proceedings.
Hope this helps,
Dear Mr. Robinson,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the series Court Martial Case Files, 12/1800 - 10/1894 in the Records of the Office of the Judge Advocate General (Army) (Record Group 153) that includes file units pertaining to Gunther, Sebastian -- Captain, Fourth Cavalry; Rendlebrock, Joseph -- Captain, Fourth Cavalry; and Hemphill, William C. -- Captain, Fourth Cavalry. We also located the series Letters Received, 1871 - 1894 in the Records of the Adjutant General's Office, 1762 - 1917 (Record Group 94) that includes the file unit titled Consolidated Military Officer's File of Captain Joseph Rendlebrock, 4th U.S. Cavalry. These file units have not been digitized. For access to these file units, please contact the National Archives at Washington, DC - Textual Reference (RDT1) via email at firstname.lastname@example.org.
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