Mississippi: Governors: 1798-1817
| Governor of the Mississippi Territory [1] | |
| 18 Aug 1798 - 7 May 1801 | Winthrop Sargent [2] |
| Secretary, exercising the powers, and performing the duties of Governor of the Mississippi Territory | |
| 7 May 1801 - 23 Nov 1801 | John Steele [3] |
| Governor and Commander-in-Chief in and over the Mississippi Territory [1] | |
| 23 Nov 1801 - 2 Oct 1804 | William Charles Cole Claiborne [4][5] |
| Secretary of the Mississippi Territory, acting as Governor of the same [6] | |
| 2 Oct 1804 - 10 May 1805 | Cato West |
| Governor of the Mississippi Territory | |
| 10 May 1805 - 3 Mar 1809 | Robert Williams |
| Secretary, exercising the powers, and performing the duties of Governor of the Mississippi Territory [7] | |
| 3 Mar 1809 - 30 Jun 1809 | Thomas Hill Williams |
| Governor of the Mississippi Territory | |
| 30 Jun 1809 - 7 Oct 1817 | David Holmes [8] |
- The commissions issued for the appointment refer to the office as Governor in and over the Mississippi Territory.
- The commission issued by the President of the United States on 7 May 1798 was delivered to Sargent residing at Cincinnati, Territory Northwest of the River Ohio, 28 May 1798. Sargent arrived to Natchez, the seat of government of Mississippi 6 Aug 1798 and assumed the functions of governor 18 Aug 1798.
- Steel exercised the functions of Governor from 3 Apr 1801 to 23 Nov 1801, the period which elapsed between the departure of Sargent from, and the arrival of Clairborne to Natchez. The term of Sargent expired on 7 May 1801.
- The commission issued by the President of the United States on 25 May 1801 was delivered to Claiborne residing at Nashville, Tennessee, 2 Aug 1801. Claiborne arrived to Natchez, the seat of government of Mississippi and assumed the functions of governor 23 Nov 1801.
- Also in Louisiana.
- Also in official use: Secretary, exercising the powers, and performing the duties of Governor of the Mississippi Territory.
- Also in official use: Secretary of the Mississippi Territory, exercising the powers, and performing the duties of Governor thereof.
- The commission appointing Holmes Governor of the Mississippi Territory was signed by the President of the United States on 7 Mar 1809. Holmes took oath of office 9 Mar 1809 in Washington, D.C., and arrived to Natchez, the seat of government of Mississippi, 30 Jun 1809.