Dear Mr. Dill,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the Orders and Circulars of the Confederate Army of the Mississippi in the War Department Collection of Confederate Records (Record Group 109) that may include the special order you seek. We also located Record Books of Executive, Legislative, and Judicial Offices of the Confederate Government in Record Group 109 that includes Orders, Department #2, Central Army of Kentucky, Western Department, Bowen's Brigade, and Army of Mississippi, 1861-1862 (Chapter VIII, Volume 337), which may contain the special order. For more information about these non-digitized records, please contact the National Archives at Washington, DC - Textual Reference (RDT1) at email@example.com.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT1. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your research!