| 1740 December 27 |
Born in Kaskaskia, District of Illinois of French Colonial Louisiana. He is the descendant of an old Norman family. His father is Louis de Boré and his mother is Therese Celeste Carriere de Mont Brun. His grandfather, Robert de Boré, is a councilor to Louis XIV. Young Etienne is educated in France and upon entering the army becomes a mousquetaire or King’s guard. |
| 1768 |
Etienne returns to Louisiana, but it is no longer French. |
| 1769 |
Returns to France as a Captain of the Cavalry. |
| 1771 September 20 |
Marries Marie Marguerite daughter of d’Estrehan de Tours who is the Royal Treasurer or Intendant for the French colony of Louisiana. Their three daughters marry B. F. LeBreton, Pierre Foucher and Gayarre, the father of the historian. |
| 1776 |
Etienne returns to Louisiana with his wife who has inherited land near New Orleans. They settle on the land, now Audubon Park, and cultivate indigo. |
| 1794 |
Etienne changes his crop to sugar cane. |
| 1795 |
Sugar is successfully granulated on his plantation. |
| 1803 November 30 |
Governor William C. C. Claiborne selects Etienne de Boré to be the first Mayor of New Orleans under American administration. |
| 1803-1804 |
Other Municipal officers: Assistants: Destrehan and Suave Recording Secretary: Derbigny; Asst sec. J. M. B. de la Hogue Treasurer: Jean Baptiste Labatut Commander of the Militia: JDD Bellechasse Police Commissioner: Pierre Achilles Riviere (Rivery) Commissioners of the Third District: Anthony Carraby, Landreu Sr. Commissioners of the Fourth District: Louis Lioteau. P. Profit City Council Le Breton des Chapelles; J. Livaudais, Sr.; Petit Cavelier; Villere; Jones, Sr.; Fortier, Sr.; Donaldson; Faurie; Allard. Jr.; A.D. Tureaud, J. N. Watkins; Pierre Petit, W. E. Hulings; Caricks (Carigue, Carridk); Le Breton D’Orgenois, Samuel Winter; T. Poree; James Pitot. |
| 1804 May 26 |
De Boré resigns from office to attend to personal business. He does not get along with governor William C. C. Claiborne and will not cooperate with other Americans. |
| 1820 February 1 |
Etienne de Boré dies and is interred in St. Louis Cemetery No. 1 in New Orleans. |