FIELD AND STAFF OFFICERS
| Organisation | May 1861 | April 1862 | January 1863 |
| Colonel | George Maney | Hume R. Field | Hume R. Feild |
| Lieutenant-Colonel | T. F. Sevier | John Patterson | John L. House |
| Major | Abraham M. Looney | John L House | A. C. Allen |
| Adjutant | Robert B. Snowden | Thomas H. McKinney | Thomas H. McKinney |
| Surgeon | W. L. Nichol | J. R. Buist | J. R. Buist |
| Assistant Surgeon | J. R. Buist | W. R. Hughes | W. R. Hughes |
| A.Q.M. | Samuel H. Ransom | M. B. Pilcher | A. S. Camp |
| A.C.S. | George W. Menees | George W. Menees | |
| Co. A. Captain | Joseph Vaulx | William D Kelly | |
| Co. B. Captain | J. B. Craighead J. Patterson | Bailey P Steele |
| Co. C. Captain | Robert C Foster | John F. Wheless |
| Co. D. Captain | James P. Hanna | Oscar Adkinson |
| Co. E. Captain | George Harsch | George Leascher |
| Co. F. Captain | John L Butler | John L Butler |
| Co. G. Captain | George L. U. Campbell | __ Irvine |
| Co. H. Captain | William R Johnson | Harry Webster (soon replaced by Jo. P. Lee) |
| Co. I. Captain | William Ledbetter | William Ledbetter |
| Co. K. Captain | Hume R. Feild | William C. Flournoy |
| Co. L. Captain | | J. W. Fulcher |
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| Consolidation of 1st/27th (January 1863): |
| Cos. A/B/C | Captain William D Kelly |
| Cos. E/F | Captain Ben Smith |
| Cos. G/H | Captain Joseph P. Lee |
| The 27th Tennessee consolidated into three companies, and it is assumed that Cos. D, I, K, and L retained their separate identities. |
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