South
1. Jefferson Davis (MS) 1861-1889*
2. John Reagan (TX) 1889-1905*
3. Francis Cockrell (MO) 1905-1915*
4. Champ Clark (MO) 1915-1921*
5. John Davis (VR) 1921-1955*
6. Harry Byrd (VR) 1955-1966*
7. Al Gore (TN) 1966-1971
-One party state abolished elections called for 1970
8. George Wallace (P-AL) 1971-1975
9. Strom Thurmond (C-SC) 1975-1987
10. Robert Byrd (P-VR) 1987-1991
11. Jesse Helmes (C-NC) 1991-1995
12. George Wallace (P-AL) 1995-1998*
13. Bill Clinton (P-AR) 1998-2006^
14. Phil Bredesen (P-TN) 2006-2007
15. Haley Barbour (C-MS) 2007-
* Died in office
^impeached
According to the Confederate constitution, the president was to be elected for a single six-year term without the possibility of reelection. Did the Confederacy have a different constitution in your timeline or was it amended after the South's victory?
It was slowly amended over the course of Jefferson Davis Presidency. Towards the end of Davis's first term the constitution was amended to allow him to run for reelection, and he was legitimately reelected for a second term, but subsequent elections became less and less Democratic.