| Diplomatic agrément | Diplomatic accreditation | Ambassador | Observations | List of heads of state of Haiti | List of presidents of the United States | Term end |
|---|
| March 3, 1863 | Ernest Roumain | (*1836) Colonel Aide-de-camp of Fabre Geffrard.
| Fabre Geffrard | Abraham Lincoln | April 21, 1867 |
| April 21, 1867 | Demosthenes Bruno | Chargé d'affaires | Nissage Saget | Ulysses S. Grant | June 28, 1867 |
| June 28, 1867 | George F.
Usher | Chargé d'affaires (1792-1877)[2] | Nissage Saget | Ulysses S. Grant | October 17, 1867October 17, 1867. Took leave March 22, 1869 |
| October 17, 1867 | George Racster | Chargé d'affaires | Nissage Saget | Ulysses S.
Grant | March 22, 1869 |
| March 29, 1869 | Evariste Laroche | Chargé d'affaires | Nissage Saget | Ulysses S. Grant | April 21, 1867 |
| November 20, 1869 | Alexander Tate | envoy extraordinary and Minister Plenipotentiary | Nissage Saget | Ulysses S.
Grant | February 11, 1870 |
| April 22, 1870 | Stephen Pr
|