| YEAR | DATE | EVENT | PRESIDENT | GOVERNOR |
| 1903 | 30 match | U.S. Occupation | ||
| 1903 | 23 april | Alejandro Woss y Gil (II) | ||
| 1903 | 24 november | Carlos Felipe Morales Languasco | ||
| 1905 | 28 march | U.S. protectorate | ||
| 1905 | 25 december | Manuel Lamarche García, Emiliano Tejera, Andrés Julio Montolío, Francisco Leonte Vásquez Lajara, Carlos Ginebra, Eladio Victoria, Federico Velásquez y Hernández | ||
| 1905 | 29 december | Ramón Cáceres Vásquez | ||
| 1911 | 29 november | Miguel Antonio Román, José María Cabral y Baéz, Manuel de Jesús Troncoso de la Concha, Federico Velásquez y Hernández (I), Manuel Lamarche García, Emilio Tejera Bonetti, Rafael Díaz | ||
| 1911 | 5 december | Eladio Victoria | ||
| 1912 | 1 december | Adolfo Alejandro Nouel y Bobadilla | ||
| 1913 | 14 april | José Bordas Valdés | ||
| 1914 | 28 august | Ramón Báez Machado | ||
| 1914 | 5 december | Juan Isidro Jimenes Pereira (II) | ||
| 1916 | 7 may | Jaime Mota, Bernardo Pichardo y Patín, José Manuel Jimenes Domínguez, Federico Velásquez y Hernández (II) | ||
| 1916 | 31 july | Francisco Henríquez y Carvajal | ||
| 1916 | 29 november | U.S. occupation | Harry Shepard Knapp | |
| 1918 | 18 november | Ben Hebard Fuller | ||
| 1919 | 25 february | Thomas Snowden | ||
| 1921 | 3 june | Samuel S. Robinson |